Earlier quoted context omitted.
My question would be, how would they know you don't have a TV if you don't tell them? Calling it hate mail and taking the time to return to sender like the OP is just making life hateful for yourself.
> My question would be, how would they know you don't have a TV if you don't tell them? You may find this hard to believe, but they drive around in a high-tech van and monitor the kinds of signals that emanate from a TV set. If they detect the electronic signature of a TV set emanating from a house paying no license fee, or if they see an off-air antenna, they begin legal proceedings. What I said above was easier in…
However I thought the general consensus is that they do not actually do this, and that it is simply a rather useful myth.