HDTV and Home Theater Podcast

HDTV and Home Theater Podcast

By HT Guys

The HT Guys, Ara Derderian and Braden Russell, are Engineers who formerly worked for the Advanced Digital Systems Group (ADSG) of Sony Pictures Entertainment. ADSG was the R&D unit of the sound de... more

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Best of HDTV and Home Theater Podcast

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  1. Number 1: Podcast #1269: Is Your LG Smart TV Listening to You? and Dolby AC4

    On this week's show we look into an article that alleges LG's Smart TVs are listening in on your conversations even when the screen is off. We also do a quick rundown on what Dolby's AC4 is and where you can experience it. We also read your emails and look at the week's news. News: Streaming Is Raising Prices Faster Than Cable Ever Did More than half of consumers want live TV and streaming in one package LG Smart TVs caught listening even with the screen off Stan from Pittsburg sent us a link to an article (LG Smart TVs caught listening even with the screen off) at FlatpanelsHD claiming LG smart TVs collect more data than many owners realize — including with the screen off. What the investigation found LG TVs use ACR (automatic content recognition): they snapshot what's on screen, including HDMI sources, for ad targeting. FlatpanelsHD notes this has been industry-wide for years, not unique to LG. The TVs scan the local Wi‑Fi network, identify other devices, and send back data such as IP address, location, and nearby network names. Voice features can transcribe speech after "Hi LG." The mic can stay active 10–15 seconds after silence. Researchers reported recording/transcription even with the display off, and that locally stored data can upload later when the set reconnects (including for a firmware update). That last point is presented as conflicting with LG's claim that its TVs "do not collect, record, or store ambient conversations." LG had not commented when the article ran. Flatpanel's Recommendation Turn ACR off if you can, or take the TV off the internet and use an external streamer (Apple TV, or Roku.). Firmware can be updated via USB instead of online. ACR is an old, industry-wide problem and it's unclear why the article focused only on LG. They still argue the mic/network findings are worth attention. They also link their earlier piece ranking Apple TV 4K as stronger on privacy because it doesn't do this kind of viewing tracking. Update - In a statement sent to Tom's Hardware, LG said "The claims made in the recently published video are not true. LG TVs process voice data only when the voice button on the remote control is pressed and held, or when a wake word such as 'Hi LG' is recognized after the user has activated the Far-Field voice recognition feature. Other than these instances, the TVs do not collect or record ambient conversations. (If the wake word is not recognized, no voice data is transmitted to the server; the audio processing for wake word detection is performed locally on the device and is immediately deleted.)" Dolby AC-4 One of our listeners, Scott, sent an email asking us to discuss Dolby AC-4 so that is what we are going to do today! Dolby AC-4 is Dolby's next-generation audio codec for broadcast and streaming. It was designed as a clean-sheet replacement for the older Dolby Digital family, not as a tweak of it. Compared with Dolby Digital Plus, AC-4 aims for similar or better quality at roughly half the bitrate. It natively handles channel-based audio, object-based Dolby Atmos, dialogue enhancement, loudness control, multiple language tracks, and different renderings for speakers vs. headphones in one bitstream. There are several profiles/levels: Level 3 — the version widely built into TVs (broadcast/OTT Atmos-style delivery). Level 4 — fuller Atmos metadata, including headphone/head-tracking features. IMS (Immersive Stereo) — a stereo-plus-metadata flavor used for Atmos music on phones and headphones. Is it backwards compatible? No. An AC-4 bitstream cannot be decoded by a Dolby Digital (AC-3) or Dolby Digital Plus decoder. Old AVRs, soundbars, and TVs that only know DD+ (AC-3) will not play AC-4. What is compatible is the playback path in new TVs and set-top boxes. Those devices decode AC-4 internally, then output whatever the next box needs: PCM stereo, AC-3, DD+, or Atmos over HDMI. So the living-room chain can still work; the codec itself is not drop-in compatible with older Dolby formats. Services that must reach mixed old/new hardware still send DD+ or AAC as a fallback. Devices that support it AC-4 decoding is common in UHD TVs shipped since about 2017, especially models that already license Dolby Audio (Dolby has said it is in a large majority of new UHD TVs). Early public commitments came from Samsung, Sony, and Vizio; it is also in many Android TV / Google TV platforms and some Amazon Fire TV devices. It is not universal: Pre-~2017 TVs, most older soundbars/AVRs, and a lot of cheap streaming sticks do not decode it. ATSC 3.0 ("NextGen TV") tuners are the main over-the-air path in the U.S.; tuner support is still incomplete across brands and model lines. Most consumer AVRs still expect Atmos via DD+ JOC (Joint Object Coding) or TrueHD, not a raw AC-4 bitstream from the source. Note - JOC allows an Atmos-capable TV, soundbar, or AVR to use the "JOC" metadata to build the immersive mix. An older DD+-only device ignores the extra data and just plays the core 5.1 Studios and television Broadcast is the main home. AC-4 is an official audio system for ATSC 3.0 in the U.S. and is adopted by DVB in Europe. NextGen TV stations can (and some do) use it for Atmos, dialogue enhancement, and multiple presentations. Immersive AC-4 on U.S. OTA is still uneven; many 3.0 stations have not yet gone full Atmos. Streaming is later. Netflix, Disney+, Apple TV+, and most other major video services still deliver Atmos as Dolby Digital Plus + JOC. Peacock has publicly committed to AC-4 (alongside Dolby Vision 2), with rollout described as later in 2026. Atmos music already uses AC-4 IMS on several apps. Studios still master Atmos the same way. The delivery codec is chosen per platform: cinema TrueHD, most streaming DD+ JOC, NextGen TV and a few future streamers AC-4. AC-4 is in the pipeline; it is not yet the default living-room streaming format.

    37min
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  2. Number 2: Podcast #1268: Ara's New Setup First Impressions

    On this week's show Ara gives his impression of the new gear installed into his new home. We talk Internet, Home Networking, Automation, and Home Theater in an action packed show. We also read your emails and take a look at the week's news. News: Apple TV Hikes Prices SVS Releases SoundPath Multi-Band Wireless Audio Adapter Roku ups premium hardware with launch of its first OLED TVs Sonos Welcomes Beam Ultra and Sonos Ace Ultra to its System Ara's New Setup First Impressions Starlink Performance - We had no issues while we were in TN. The entire week no said anything about slow speeds and our streaming was no different than when we are in CA. I tested speeds from time to time and results varied but the slowest speed (22 Mbps) never impacted TV viewing. Ubiquity Network Management - this is a different world! I am still exploring all the things you can do. But the system is setup like a business. You have a network and wireless access points. I have four. One on Channel 11, two on 6, and one on 1. It was setip so the channels are far apart and don't overlap. MyQ & Honeywell (matter compatible) thermostats go offline from time to time. I restart the wifi access point and they come back. Third Reality Garage Door Opener - 2.4 GHz, Scene Management Mantel Mount MM815 Motorized Drop Down & Swivel TV Mount - $700 The MM815 is a remote-controlled drop-and-swivel TV mount. Press one button to lower the TV to eye level and rotate it as needed. It comes with an RF remote, is silent, and has two memory presets. Sony BRAVIA 7 II PRO True RGB 4K HDR Google TV with Gemini (Model Number K75XR70PRO)- $2300 The Sony BRAVIA 7 II PRO is Sony's 2026 mid-range True RGB Mini-LED TV (65 inches and up) with independently driven red, green, and blue backlight LEDs, XR processing, and about 2,000 nits of peak brightness for stronger color volume and contrast than a typical white Mini-LED. It is 4K at 120 Hz, supports Dolby Vision and Dolby Atmos, and has HDMI 2.1 gaming features (VRR, ALLM, 4K/120). Google TV includes Gemini for voice search and recommendations, plus AirPlay 2. The Pro bundle adds a three-year replacement warranty, a backlit rechargeable remote, extra Sony Pictures Core credits, and an enhanced Voice Zoom 3 dialogue mode; picture hardware is the same as the standard 7 II. Sonos Arc Ultra - $1099 The Sonos Arc Ultra supports Dolby Atmos that has a 9.1.4 driver layout and Sound Motion woofer to produce wide, height-enhanced surround and stronger bass from a single bar. It connects to a TV with one HDMI eARC cable, supports Wi-Fi, Bluetooth, AirPlay 2, and the rest of the Sonos ecosystem (including optional Sub and rear speakers), and can be controlled with the TV remote, Sonos app, touch controls, Sonos Voice Control, or Alexa. Trueplay tunes the sound to the room, and AI speech enhancement is meant to keep dialogue clear. It is a long, low-profile bar (about 46 inches wide) sold in black or white. Sonos Sub 4 - $899 The Sonos Sub 4 is a wireless subwoofer for Sonos S2 systems, pairing with current soundbars and speakers to add bass down to about 25 Hz. Two inward-facing 5-by-8-inch woofers and dual Class-D amps use a force-canceling layout so the cabinet stays relatively still and the bass stays clean. It has the same slot-style shape as earlier Subs, in black or white matte, and can stand upright or lie on its side. Updates over the Sub 3 include Wi-Fi 6, a faster processor, more memory, lower idle power, and a slightly lighter cabinet; setup is through the Sonos app, with optional Ethernet. Two Sub 4s can be used with the Arc Ultra. Audio Advice - I'll be in Franklin in October for a SVS/Audio Advice Event. Details to come

    55min
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  3. Number 3: Podcast #1267: Nick Brown and Smith Freeman of SVS Sound

    Nick Brown and Smith Freeman of SVS Sound On today's show we have an interview with Nick Brown (VP of Marketing) and Smith Freeman (Senior Director of Product Management) at SVS Sound. We discuss their new Auto EQ, the upcoming Soundbar and general audio chat. SVS Launches First-Ever Soundbar and New 3000 R|Evolution Series Subwoofers at CES 2026 SVS AUTO EQ Frequently Asked Questions

    41min
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  4. Number 4: Podcast #1266: Ara's New Setup

    On today's show we discuss Ara's new family room TV and Audio setup and what his plans are for the future. We also read your emails and look at the week's news. News: Marantz Introduces The CINEMA Series 2 Receivers Dolby Vision 2 HDR Is Officially Arriving On Certain Hisense TVs Nearly A Third Of U.S. Homes Get TV Only Via Streaming Peacock hikes prices for fourth straight year, this time by $3 Other: Theatrium - A home Assistant or HomeKit Dashboard for your AppleTV Parts List for Ara's New Home Family Room: Mantel Mount MM815 Motorized Drop Down & Swivel TV Mount - $700 The MM815 is a remote-controlled drop-and-swivel TV mount. Press one button to lower the TV to eye level and rotate it as needed. It comes with an RF remote, is silent, and has two memory presets. Sony BRAVIA 7 II PRO True RGB 4K HDR Google TV with Gemini (Model Number K75XR70PRO)- $2300 The Sony BRAVIA 7 II PRO is Sony's 2026 mid-range True RGB Mini-LED TV (65 inches and up) with independently driven red, green, and blue backlight LEDs, XR processing, and about 2,000 nits of peak brightness for stronger color volume and contrast than a typical white Mini-LED. It is 4K at 120 Hz, supports Dolby Vision and Dolby Atmos, and has HDMI 2.1 gaming features (VRR, ALLM, 4K/120). Google TV includes Gemini for voice search and recommendations, plus AirPlay 2. The Pro bundle adds a three-year replacement warranty, a backlit rechargeable remote, extra Sony Pictures Core credits, and an enhanced Voice Zoom 3 dialogue mode; picture hardware is the same as the standard 7 II. From RTINGS: Pros: Great black levels with minimal haloing. Bright details in HDR stand out incredibly well. Fantastic SDR brightness helps it overcome glare during the day. Fantastic upscaling and great low-quality content smoothing. Colors are incredibly bright and vivid. Cons: Dark scenes are hard to see during the day. Sonos Arc Ultra - $1099 The Sonos Arc Ultra supports Dolby Atmos that has a 9.1.4 driver layout and Sound Motion woofer to produce wide, height-enhanced surround and stronger bass from a single bar. It connects to a TV with one HDMI eARC cable, supports Wi-Fi, Bluetooth, AirPlay 2, and the rest of the Sonos ecosystem (including optional Sub and rear speakers), and can be controlled with the TV remote, Sonos app, touch controls, Sonos Voice Control, or Alexa. Trueplay tunes the sound to the room, and AI speech enhancement is meant to keep dialogue clear. It is a long, low-profile bar (about 46 inches wide) sold in black or white. Sonos Sub 4 - $899 The Sonos Sub 4 is a wireless subwoofer for Sonos S2 systems, pairing with current soundbars and speakers to add bass down to about 25 Hz. Two inward-facing 5-by-8-inch woofers and dual Class-D amps use a force-canceling layout so the cabinet stays relatively still and the bass stays clean. It has the same slot-style shape as earlier Subs, in black or white matte, and can stand upright or lie on its side. Updates over the Sub 3 include Wi-Fi 6, a faster processor, more memory, lower idle power, and a slightly lighter cabinet; setup is through the Sonos app, with optional Ethernet. Two Sub 4s can be used with the Arc Ultra. Master Bedroom: Sony BRAVIA 3 II 4K HDR LED Google TV (Model Number K55XR30M2) - $798 - The Sony BRAVIA 3 II is Sony's 2026 entry-level 4K LED set, sold from 43 to 100 inches. It uses a direct-lit LED panel, a 120 Hz refresh rate, and the XR processor for color, motion, and upscaling. HDR covers Dolby Vision, HDR10, and HLG. All four HDMI ports are 2.1, with 4K/120, VRR, and ALLM. It runs Google TV with Gemini, AirPlay 2, and Chromecast, plus built-in speakers that pass Dolby Atmos and DTS:X to a soundbar. The picture is good in bright rooms; but as you would expect, the contrast and HDR are limited compared with higher BRAVIA models. If you are going to use this for anything more than casual viewing or you are really critical of picture quality you may want to look elsewhere. But for those on a budget or used in a secondary room, it's a solid TV.

    32min
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  5. Number 5: Podcast #1265: Garage Doors - AV Receivers - Atmos in the Family Room

    On today's show we discuss Ara's garage door plan for integrating it into HomeKit, we help a listener decide on which receiver to buy, and we ask whether Atmos is worth it for a family room. We also read your emails and take a look at the week's news. News: Get YouTube TV For Just $67.99 a Month Down From $82.99 For The Rest of 2026 How many subscribers do major live TV streamers have? Other: Bingebuster THIRDREALITY Smart Garage Door Opener Last week I discussed my garage door situation where MyQ does not integrate with Apple's HomeKit. I explained that I will be using a solution called ratgdo (Rage Against The Garage Door Opener). A few of the listeners emailed and suggested that I look at the ThirdReality Smart Garage Door Opener). Available at Amazon for $50. Issues for me: When you install it in Apple home it installs as a lightbulb. I added it to Home Assistant first because I knew Apple HomeKit was going to treat it like a light instead of a garage door. In Home Assistant, it shows up as a light entity, with the on off state following the tilt sensor. To make it behave like a real garage door, I created a Template Cover helper and set the device class to Garage. For the state, I used the template to report open when the light is on and closed when it's off. Then I set the Open and Close actions to call the light.turn_on service on the light entity, so pressing Open or Close in Home Assistant is basically the same as pressing the garage remote button. After that, it shows up and behaves like a garage door inside Home Assistant, with the right open/closed status based on the tilt sensor. It's mechanical. Batteries After Jorge's email,I am now looking past these issues and considering this solution. And yet another listener provided even more fuel for this fire! David writes in and says: Most door operators have a provision for a wall mounted pushbutton ( the same one used for years). It's a momentary pushbutton closure. There is a cold contacts switch which operates in the Matter smart home standard. As a result it works in all the various smart home systems. It's a Shelly 1 Mini Gen 4 device…about $25. I have installed mine into my Apple HomeKit system to operate my Genie garage door opener. There is no sensing of the position of the door in the Shelly 1 Mini Gen 4 - it is only for operating the door. I have used the IKEA "MYGGBETT" door/window sensor ($10) to sense the position of the door - it is also Matter compliant. It is the usual magnet/reed switch pair. I have used this sensor to also trigger a light inside my house to signal an open garage door. The Apple Home automation could be written to close and open door after 10 PM. Or close a door open for more than 1 hour. Marantz, Denon, or Onkyo • Marantz Cinema 70s • Denon AVR-X2800H • Onkyo TX-RZ30 Onkyo TX-RZ30 Pros 9 amplified channels (supports 5.2.4 or 7.2.2 Atmos) Full-bandwidth Dirac Live included (major value) THX Select + IMAX Enhanced certified Dual independent subwoofer outputs + full pre-outs Strong power (~100W/ch) and generally excellent reviews for sound and value Cons Dirac setup can be finicky Onkyo's past reliability reputation still in the back of my mind Denon AVR-X2800H Pros Reliable, polished, user-friendly experience Solid Audyssey MultEQ XT room correction Good, balanced sound and strong HDMI features Much better reliability and support Cons Only 7 channels (max 5.2.2 Atmos without external amps) No Dirac (Audyssey is good but not as advanced) Marantz Cinema 70s Pros Slim, stylish design that fits media cabinets Marantz sound Pre-outs for future expansion Cons Lower power (~50W/ch) — best for smaller/efficient speakers Only 7 channels More expensive relative to performance and channel count Recommendation: Onkyo TX-RZ30 It delivers the most meaningful advantages for the money — 9 channels, including full Dirac Live, THX certification, and independent dual subs. The Denon is the safer "set-it-and-forget-it" choice if you prioritize polish and reliability, while the Marantz is best if you specifically need a slim form factor. For performance and value in a modern Atmos setup, the RZ30 is the clear winner right now. Is Atmos Worth it for a Family Room? Yes, Atmos is usually worth it in a typical family room — but with some practical caveats. Why it's worth it The overhead effects (rain, helicopters, debris, ambiance) add noticeable immersion even in a normal living/family room. A lot of modern movies, streaming shows, and games take advantage of it. Realistic expectations for a family room The "wow" factor is more subtle than in a dedicated theater. You're not going to get the same dramatic height effects you hear in a big cinema. Placement matters a lot. Up-firing Atmos speakers work okay if your ceiling isn't too high or absorbent, but actual in-ceiling or on-ceiling speakers sound better. Aesthetics Committee — extra speakers on or near the ceiling are more noticeable in a shared family space. Bottom line recommendation If you are starting from scratch and have access to wire ceiling speakers do it. If you don't have access you won't miss too much. Skip if the budget is tight, ceiling placement is difficult, or you mostly watch TV/sports rather than movies. A solid 5.1.2 Atmos setup is the sweet spot for most family rooms. You'll get most of the benefit without needing a full 7.1.4 layout.

    48min
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