Can't Get out of Video Mode?

My parents gave me their old TV. No remote, no manual.
The TV is stuck in Video1.
I bought a universal remote (they don't have the old remote that came with the TV) and tried to use it to get out of Video1. That did not work.
How do I fix this? Or can I? Am I doomed to having to fiddle with cables when I want to switch between the DVD player and my consoles?