Got it, the message was too long. I had to divide it into two parts.
Of course, Billy, I watched everything you uploaded to YouTube.) Our arms are of different lengths. I mean, Pete, Dan, Manny have the capacity, connections and money to contact the owners of the TV archives to request material. I will give a few examples.
In 1973, Nazareth performed on Top Of The Pops with the song Broken Down Angel. Where is this video? Only the desire of the fans is not enough to find it.
During the recording of the Big Dogz album, the film Until We Drop was shot by a Czech director. Unfortunately, I didn’t get to see this movie, but from the trailer you can see footage of an unknown performance with the song Bad Bad Boy. Judging by the footage, most likely there is a recording of not only this song. You can watch it at 0:20 https://www.youtube.com/watch?v=ji4RPNX1T2k