The Early '70s. Really. St. Louis's first UHF station, KDNL, was starting up and they were trying to attract a young audience willing to go through the rear channel dial search on the TV's of that time period. At that time TV sets had a large channel knob with click stops at 2, 3, 4, 5, 6, 7, etc. These were all VHF stations as used but CBS, NBC and ABC. UHF stations could only be acquired by slowly rolling a dial behind the big VHF knob until a station came in. Like old short wave radios. Most adults tut tutted this and so ignored it. KDNL chose to advertise their coming channel broadcast on local FM Rock stations. "Starting on this night at midnight. Be there". So, like many of my friends, I stayed up that night and played with the dial behind the big channel knob a little before midnight until I could pull in a pretty good picture with the KDNL logo displayed and then waited. At midnight a dark picture of a stage followed by the lights being brought up to the opening riff of The Alice Cooper Bands, "I'm Eighteen" began. The video was a little grainy but it was the first time video experience for myself and my friends. I also remember the following video was from the early line up of The Steve Miller Band performing two songs. "Gangster of Love" and "Space Cowboy". The idea worked. KDNL is still a staple in St. Louis, Missouri.