I've had my Tivo Series 2 for about five years. Changes channels on my DirecTV satellite using IR. Had a small problem earlier this year with a new satellite box -- the channel didn't always change -- but slowing down the setting seems to have fixed that. No problems for months, channels changed fine as late as 2 p.m. this afternoon, but now there is no response. Tivo flashes the program information as if it has changed channels, but the satellite dish doesn't seem to be affected at all. The IR is still plugged in where it always has been. The two ends of the IR are hanging in the same spot on the satellite dish. Can someone help me please?