Hey AA!
I have an AV modded Atari 2600, Vader model. Problem is, when playing certain games like Demon Attack, it looks ok. There's a little interference on Donkey Kong, but that stops when the game starts. However, on other games, it only outputs black and white, and the picture is quite staticky. Let me post some pictures:
Here's Demon Attack, looking like it should:
and here's Galaxian, in black and white:
Thanks for any help.
My personal belief is that it's due to Galaxian being PAL while my Atari's NTSC.