Advertisements We have had our Tivo for several years now, and I know the drill with the Infra-Red setup. If it starts having trouble when changing channels, then you have to mess around with the setup, and try a different channel mode, blah, blah, blah. Even then, though, we still have occasional problems with the channel just not changing and it SUCKS -- especially if you're counting on it recording something and it didn't change the channel. We would like to use the serial set up, but our cable box does not have a serial port. I talked to Time Warner, and they say they do not have any cable boxes with serial ports in the back. So are we totally out of luck? Are there no other ways to set up channel changing than these two ways?