A book I'm reading mentions that the main character has a really old TV

The picture shrinks and dies away when she turns it off. This reminded me - it's been YEARS since I thought about this! - that when I was a kid, I used to sometimes turn the TV onto channel 3 (before we got cable) to watch the static.

I guess I wasn't the only one, because there are actually several YouTube videos showing just that. Cool, but... frankly, yeah, a bit weird.