Indeed, although they do it very subtly.
I was called by then a while back, and offered the full film/sports package free for three months, and if I cancelled after the trial, the price would revert to an amount lower than I was currently paying. Who wouldn't accept, eh?
Three months later I called to cancel - and the price would be higher than before. I moan, and say about their earlier promise, and it turns out that (1) the sales guy didn't have the authority to promise a future price, and (2) they have a policy of not allowing reviews of historic phone calls in price disputes.