Modding a consumer NTSC TV for RGB input is a task that can be accomplished by a moderately gifted hobbyist :
https://absolutegamer.net/modifying-...rt-tv-for-rgb/
Here are the specifications of my 21'' Samsung TV :
https://tinyurl.com/j6mzzte6
I use it amongst other things to display MAME & Retroarch games in 240p, picture is very nice, no flickering at all when used as a monitor, plus the fact that its (relatively) flat screen (we used to designate these as "télés à coins carrés", square corners CRT TV sets) greatly enhances the experience. It doesn't receive enough playtime thought. Due to lack of room, it had to be placed on a desktop exposed to backlight and distant from my favorite sitting spot in the studio, a pity really. I would advise against PVM's bearing > 600 lines, corresponding scanlines may darken the image excessively, even for those that are scanline lovers.