The rear-projection Mitsubishi WD-737 series offers the most screen for the least money, and decent picture quality to boot.
Mitsubishi WD-737 series overview
If the heyday of the gigantic-screen rear-projection HDTV is over, somebody needs to tell Mitsubishi. The company is the sole remaining proprietor pushing out 60-inch-plus TVs too thick to hang on the wall and too inexpensive to merit a cameo on MTV's "Cribs." Its 2009 lineup features two series of what it calls home theater TVs--to differentiate from its flat-panels--and the WD-737 is the cheapest. The main reason for buying this TV is to get as much screen for as little money as possible, and the WD-737 series fulfills that role admirably. It can't match the black-level performance of most flat-panels we've tested, it has some uniformity issues unique to its category and of course you'll eventually need to replace the bulb. However, the replacement is relatively inexpensive ($99, plus shipping), color accuracy is very good, and did we mention the picture is gi-normous? If you want to go really big for less, the WD-737 series is the only game in town.
We couldn't stand the remote. Where to begin? A confusing jumble of same-size keys surrounds a Tinkerbell-sized cursor control that's all-but-unusable (unfortunately, operating the TV requires using it all the time). The four main function buttons blend together, none of the keys are illuminated and all are hard to tell apart by feel or location. There's also no dedicated key to switch aspect ratio. You can use the remote to control up to four other pieces of gear, but you probably won't want to. A universal remote is almost a necessity with this TV, if only so you can put the horrendous included clicker away forever.
Overall, the Mitsubishi WD-737 performed very well for the price. Its strengths include color accuracy and the sheer impact of its huge screen--which, unlike older CRT-based rear-projection units, can get plenty bright for even the brightest rooms. On the downside the big set couldn't match the black-level performance of flat-panels we tested, and its screen showed some grain along with a few other less-noticeable uniformity issues.