Selecting Wi-Fi channel to reduce interference, certificate errors (can be caused by incorrect computer date), recovering hacked Facebook account (what to avoid), Google Cloud Printing (how to set it up, print from any device anywhere), Profiles in IT (Fermando Jose Corbato, pioneer in time-sharing operating systems), giant global selfie (NASA celebrates Earth Day), Facebook offers privacy checks (responding to customer demands), eBay users at risk after cyberattack (expect identify theft and phishing attempts), and texting 911 (calling for help without making a call, protocol supported by the big four wireless providers). This show originally aired on Saturday, May 24, 2014, at 9:00 AM EST on WFED (1500 AM).