This week's show is a PropKast featuring Brian A Terranova telling us about how he and a group of prop enthusiasts built their own RTD-era sonic screwdriver.

Tying in nicely with our RTD era sonic screwdriver PDF, Brian tells Christian Cawley how prop makers put their heads together, pooled resources, and built their own sonic screwdrivers.

As if all that wasn't enough, there's even some chat about how the Star Wars fan community discovered how a lightsaber prop changed during Return of the Jedi. You'll also learn what a "Hero Prop" is, assuming you don't already know...

Don’t forget to follow us on Twitter: look for @kasterbeyond for show updates, interesting retweets, and wry observations about Doctor Who and other favorite shows.