I watch/hear very few interviews:

Listening to podcasters has reminded me how upsetting an interview can be when the interviewer does not challenge the interviewee. If a person is making false or unsupportable claims, you WANT the interviewer to dig in and call them on it. When I'm convinced I could ask better questions than the Larry King interviewer, I get extremely frustrated and usually change the channel. Where are the intelligent interviewers? (Just for contrast, here's the opposite: an interviewer who seems never to challenge or contradict, and does some of the interviewee's work for him. And sometimes that even works!)