My Atari 2600 is acting very interesting lately. Usually, every game (and the console) I have is displayed in NTSC. 2 days ago, I set it up to a VCR. It didn't work. When I set it up using the RF Modulator, greens were blues, blues were pinks and so on. To my dismay (and relief), I found out that all the games I had were being displayed in PAL and not in NTSC. That was weird because all my TVs are displayed in NTSC. Is there a way for me to get the display back to NTSC or do I need to replace some parts.