The TiVo is significantly less useful when the program guide is wrong. This is, of course, not their fault, but the fault of the mom-and-pop company that supplies cable to my apartment complex.
My one consolation is that, even though USA and NBC are swapped, all I really want them for is Law and Order. I’ve had pretty good luck with it trying to record NBC’s Law and Order and, though failing that, grabbing an episode from USA.