Every writer should watch telly. Lots of telly. It allows your thought processes to work in peace while you're actually gawping at the box, and it allows your subconscious to pick up good ideas for future use.
Yes, watching telly is very good for current and for future work.
Of course, if you're doing NaNo you won't have time to watch telly, but all that telly-watching in the past will stand you in good stead for doing NaNo now.
Writers have it made, really. They can justify doing absolutely anything for the experience of it. And all experience is valuable for a writer.
Yeah. Watch more telly.
Susan