How do you connect video games to an rca colortrak 2000

You need to buy an modulator. They usually run between $13 to $25 dollars a piece and can be bought at any discount store (Wal-Mart, K-mart, Best Buy etc.). Plug the white, yellow, and red jacks from your video game unit into the modulator. Adjust to channel 3 or 4 usually.
Hope this helps