Don't have the issue of my window scratching the paint, it has a rubber bumper along the bottom edge to prevent that. Maybe you could pad the window lip to prevent scuffing?
And yes the old tube tv is ghetto but I bought it on a whim at the re-store for like 4 bucks and it still worked! I've since upgraded to a more expensive, more [semi] permanent solution lol
Insignia 19" LED TV and a PS2 slim; it folds up and out of the way, and swivels around so I can watch it while tailgating. The TV itself is actually 12VDC so I'm looking at a way to wire it up and bypass the power inverter.