But... but... but...
If you've got the bloody telly turned on, just tune to a BBC news channel! What the hell is the point of sending a low-res low-info low-iq (OK, I'm judging from the current news.bbc.co.uk news-free site) signal when you're already wasting, er, sending moving pictures and real sound over the air?
It's pointlessness for the sake of it.