I was poking around youtube for the Late Night with David Letterman show (the one back on NBC), the episode back around 1983-84, where the entire screen rotated clockwise over the course of the hour.
I've not found a clip yet. But I've been watching other clips, like this one...
Amazing. There was a time as an early 20-something when we *had* to watch Late Night and talk about it the next day. The current Letterman is more mild, but still bits like, "Is this anything" and "Will it float" provide glimpses back to the original show, which at the time seemed like "anything goes".
I wish I could find a clip of that episode with the screen rotating slowly over the hour.