You have to find out if the remote is sending out the infrared signal to the TV remote receiver or not, you can test that by pointing the remote at the digital camera, you should see flashing light on the camera screen when any one of the remote button is pushed (digital camera can detect infrared light). If get the flashing light then the problem is in the TV remote sensor.
http://s807.photobucket.com/home/budm/allalbums
http://en.wikipedia.org/wiki/Capacitor_plague
http://www.badcaps.net