True. TV networks don't censor films themselves, but they can edit them for time, for example a 2 hour plus movie can be cut down to fit into a 2 hour timeslot.
But they will usually buy cut versions, which makes sense from their perspective because they will probably premiere them earlier in the evening, and then repeat them over the next few years later at night.
I can't believe anyone watches films on TV these days anyway. Surely if it's a film you like you will already have bought it or rented it, of it is a film you want to see you will do the same, and you have the added advantage of better pic and sound quality, plus no adverts or annoying logo's.