The best would be HDTV. I here that "HDTV WONDER™ REMOTE CONTROL EDITION" is pretty good.

The problem with HDTV though is that it has not nearly as many channels as analog at this time.

For information check out:

http://electronics.howstuffworks.com/hdtv.htm

http://www.highdefforum.com/

The subject on HDTV has not sorted out compleatly yet..! You might want to wait a few years and hopefully by then there will be more channels and at a lower cost?