We got a Phillips Tivo on ebay and I thought that they would be sending everything with it to run it, of course they didn't.. so we are just trying to make do with what we already have. My problem is that our satellite receiver doesn't have a serial port so we are assuming that we need the IR blaster and I already ordered it online. But is that really all we need to watch live tv? I can get the tivo to come on to the tv but I can't get it to change channels. It keeps coming up with an error message and a list of thing to try.