My tivo has started behaving very oddly. Unless I sit within 4 feet of it, it will not change channels - it does not send anything to the IR wand. It is an expanded Panasonic Tivo which I have had for about 6 months now and this is the first time I have had this problem. Have rebooted both the Tivo and the Sky box several times. There are no other remotes in the room that could be sending conflicting signals. Can Tivos get lonely? Phoebe.