I use this:
http://www.epvision.com/HDTVSTB/phd205LEmain.htm
If you use Dish, I think they have a box that can record dual channels as most do, and another two OTA channels, all simultaneously.
I haven't paid for TV programming in years, but if I started to again for the long haul, I would likely cough up the extra few hundred bux and get an expensive Tivo, because they work well and are cool. However, I say that with the impression that box rentals from today's companies being exorbitant, for POS's that have been refurbished 10x already.
Anyways, regarding my own tuner, here is a mini:
http://forums.audioholics.com/forums/showthread.php?t=63135
It appears I didn't mention it in this mini, but the numbers on the display look much better than in the pic, and significantly smaller. The pic has numbers that look like they belong on a $5 alarm clock.