1980s HBO Title Sequence

This is a charming little behind-the-scenes clip showing how a small New York studio made an elaborate intro sequence for the then=fledgling cable channel, Home Box Office (HBO). I just love the craftsmanship and time it took, the ingenious streaking effects done optically. The 65-piece orchestral theme. Plus, they even wrote a song* (reminds me of the "Coke Is It" jingle of that era) just for the documentary!

via Cartoonbrew
^*Performed by this guy.