I am using an LCD TV connected with the RGB to Scart cable but in interlaced modes it still flickers though not as bad as CRT does.
I have also a scan doubler but without flicker fixer. Its not being used right now.
Put the VGAonly monitor driver in devs/monitors, along with dblpal, dblntsc and multiscan, plus the fblit, ftext patches. 32 colors can be dithered to look nice enough, without everything crawling.