This actually worked better than I hoped, sorta.
I zapped the video inputs on the tv instead, but the regular tv channel tuner still works. But he thinks that the video output on the xbox is what stopped working. So instead of returning a bad xbox and getting a good one back, he'll be returning a good xbox, getting a good one back and finds that it still doesn't work. It was funny watching the tweaker cuss about it because the sound inputs still work, so you could hear it turn on and everything but the screen was blank.
Hopefully, this peace should last for the rest of the semester. Now if he would only take a fucking shower instead of watching spongebob. Maybe I could tamper with the fire sprinkler.