When it comes to the UHF remotes there are only really three problems. 1) Power, your remote needs new batteries. 2) Distance, you have to either relocate the TV2 or the antenna closer. 3) Interference: Something is happening on the same frequency that is drowning out your remote commands. Change the remote address (menu, menu) to something else and see if the problem persists. If, after a few address changes the problem continues, then either there is interference in the whole spectrum the remote uses or the problem was 1 or 2.