I remember when UHF came into being. You had to buy a TV that now had "U" for a channel as well as the second knob for channels 14-82. In Boston we got TV 38 which became the home of the Bruins and later Red Sox and Channel 56. Going from one channel to the other was accompanied by a loud series of clicks. And the TV was better then than now! Tuesday was "Combat" in b/w, Sunday was Kojak, the Equalizer, and Mission Impossible.