I'm not so sure. I dunno about Time Warner, but DirecTV is giving me a run-around about returning a now extra receiver. As near as I can guess, they don't really want the box back. They want the $55 to $470 fine for "losing" it:
Incidentally, the article says that DirecTV provider a shipping box for returning equipment. I haven't received the box yet, but my guess is that I'll end up paying the shipping. We'll soon find out. Another clue is that I also have some old receivers, and two fairly new ones that I found at the recyclers. They don't want those back.