[grishka]

I remember reading somewhere that there was this wild prototype flat CRT where the electron gun was at the top, shooting down, and the beam did a 180 degree turn at the bottom before being deflected into the surface of the screen.

[UncleSlacky]

Yes, the Sinclair TV80 worked on that principle: https://en.wikipedia.org/wiki/TV80

[grishka]

Nope, it's that, but folded in half. Found a mention of it (that I commented on, lol): https://mastodon.social/@tubetime/111219376410543899