The Sony KDL-EX700 is the second edge-lit LED-based LCD we've tested from Sony this year. If you read the KDL-NX800
's review, you will notice more similarities than differences between the two. The price disparity--of $400 between the two series' 46-inch models--gets you improved styling, Wi-Fi networking, and a couple of other minor niceties on the NX800; however, for some reason you lose the innovative "presence sensor." That feature turns the EX700's picture off automatically when you leave the room, and it can really lower power use if you're prone to leaving the TV on. Even without the sensor, the EX700 sips as little power as any TV we've tested--although we expect other LED models we review this year to post similar results.
Careful comparison shoppers might be surprised to learn the two Sonys have nearly the same picture quality. The major performance-related difference is that the EX700 has a matte screen, while the monolithic exterior of the NX800 apparently calls for gloss-- in a bright room, we preferred the matte finish. The EX700's picture won't wow anyone looking for a home theater centerpiece, but the TV earns the practicality nod over its more-expensive brother for buyers who still want Internet video and superb energy efficiency.