Preventing unwanted Wi-Fi hotspot connection, Trace Route (tracing Internet routing), Profiles in IT (Liu Chaunzhi, founder Lenova Computers), 2016 Gift Guide for Geeks (droids, drones, laptops, activity trackers, and more), and permanent Internet tax exemption. This show originally aired on Saturday, December 12, 2015, at 9:00 AM EST on WFED (1500 AM).