I have the same BW screens. Both have AMT630 video chips that get so hot. The LCDs also get hot.
I think everyone's read about how text is an issue on these 240p screens but dont seem to realise the emulated games are pretty much all rendered at 240p. My issue with the current screens being used is how bad composite video can be when we are dealing with such low resolution screens specifically compression at the pixel level and the lack of RGB.
If you're unaware of composite and RGB issues with retro consoles you should really check out the RGB master class the information is spot on and I really appreciate the production that goes into the videos from mylifeingaming
The info does seem to be out there but not on the wiki and by the time I get to properly start researching this stuff it's past midnight, this is a long thread so I wont be reading through it tonight but there does seem to be some interesting posts about the bw screens.