3-2-1 Contact - Very First Episode from 1980. Part 1 of 2. This is very first episode of this popular TV series back then. You will see the episode number on the lower left hand corner of the screen. You also get to see how they put the theme music together (intro only).
Here is a link for Part 2 https://www.youtube.com/watch?v=TX4s0X6FDcQ&t=27s