On the 522, TV1 only responds to an IR signal while TV2 only responds to a UHF signal. Is this correct?! Unfortunately, that means that I will need to buy additional DISH TV2 remotes to control TV2 (even if I'm in the same room with the receiver). You can switch the blue control key on the TV2 remote, but then it only works for TV1. My older 4900 is able to receive both IR and UHF signals which is great for using a learning remote to control it. Is there anyway to use a programmable learning remote to control TV2? I haven't seen a learning remote that can learn a UHF frequency. Or am I truly forced to buy three more TV2 remotes? Any other options?