A video about old American TV graphics

A while back, I recall somebody on here posted a video by a graphic designer, who wanted to look into how the old 70s/80s style of graphics used in American TV stings and trailers were created. He spoke to a graphic designer from that era who showed him the equipment that was used. I've just tried to track it down to no avail.

If the person who posted this remembers where this video was (or anybody who saw it and remembers where to find it) any help would be greatly appreciated.

Maybe you mean this?

That's the one! Thank you very much.