The Sony CPS-14F1 has a beautiful picture and primarily connects by JP-21 or multiRGB, however you want to call it. It also had composite video input. This makes it a pretty flexible monitor, being able to accommodate computer systems like the FM77AV series and Sony's SMC-777 series, as well as all of the MSX2 and above systems, and a whole slew of game consoles.

Here it is in action, with some FM77AV20EX content and a Metroid screenshot from my AV-modded Famicom.