Would anyone know how to fix the infrared receiver on a television?

My remote control is working fine. It is the receiver on the television that isn't. I have cleaned it with alcohol (just in case) it was little sticky finger grandchildren, but that's not it either. I am sure it is something internal. I can't even get a "universal" remote to work on it. It is a 3 year old Toshiba TV/VCR combo.

Thanks!

If your TV can not be control by your remote and you have fresh batteries in your remote, then the standby voltage from your low voltage supply (5V SB) is bad. If you manually turn ON the TV at the TV itself, can you adjust volume, channel selection, etc.? In other words, will your remote work if you manually switch ON the TV at the TV itself? Reason being, this 5V is the voltage that supplies the infrared receiver LED circuit, well, in most TV's.