What remote model is it? The model is found on the back, at the top (something like 21.0, 6.4). To set it up for TV2, make sure it has the proper "2" key in the remote facing out. This key is on the front, at the bottom (it can be changed by taking the battery cover off).
If the "2" key is in, on the front of the receiver, press the system info button, then on TV2 remote, press "SAT", and the press record 3 times. This ideally should get the remote working properly with the receiver. Please let me know if it doesn't