I used to make audio recordings of commercials from Tulsa television and radio in the 1970s. I've digitized some and have just now put some of them here: 1970s Tulsa audio (//%22http://www.greatamericaparks.com/temp/audio.html%22). I hope you enjoy a little stroll down memory lane. The audio quality varies, but it's not too bad at all. I desperately would like to have better versions of these, which were recorded by a kid with a cassette recorder.