I have a RCA 50in. Rear projection HDTV and both of the rear inputs when used cut off the top of the picture it is almost like it is zoomed in really far i tried everything i could in the menu with no luck and the front input is very touchy from my one year old pulling on the cords so you gotta really play with the plugs to get it to work right there is no coaxial cable input the only way to hook it up is to use rca wires can anyone tell me what is wrong and about what it will cost to fix this problem?

Televison & Video - RCA