What was Mike Teavee fond of? How do you come to know about it?

In Chapter Eight, we learn that Mike Teavee is fond of television. We come to learn this when Mike refuses to talk to reporters because he doesn't want to be bothered when he is watching television.

‘The Teavee household,’ said Mr Bucket, going on with his reading, ‘was crammed, like all the others, with excited visitors when our reporter arrived, but young Mike Teavee, the lucky winner, seemed extremely annoyed by the whole business. “Can’t you fools see I’m watching television?” he said angrily. “I wish you wouldn’t interrupt!”