I remember when you had to go out of your way to buy a TV that had anything but RF.

In 1990, I specifically bought a 20" TV which had s-video inputs to use with my laserdisc player. Strangely, I never thought to connect my SNES to it.

I did, however, play around with using my Apple IIc monitor for my SNES. It had composite input only, but it had much higher resolution than my TV.