Morrison's Mailbag: Will leaving my HDTV on affect the picture?

CNET reader Ray asks: Will leaving my TV powered on (but on black screen) for an extended period of time do any damage or affect the picture quality?Good question. For reasons that made sense (but I left out for space), CNET reader Ray leaves his HDTV on 24 hours a day. The cable box it's attached to is "off," but like most DVRs it still outputs a signal (because it's not actually off). So the ...

How to avoid online HDTV shopping scams

Online HDTV shopping can save you time, gas and money, provided you choose the right dealer, but picking the wrong dealer can be a disaster. Here's how to stay a step ahead of the scammers.

Panasonic TC-L47DT50

The Panasonic DT50 series is a beautifully designed, full-featured 3D LED HDTV, but if you're willing to compromise on looks, you can get a screen that works just as well for less money.

Panasonic TC-L55DT50

The Panasonic DT50 series is a beautifully designed, full-featured 3D LED HDTV, but if you're willing to compromise on looks, you can get a screen that works just as well for less money.

May 10: Swanni's 15 Hottest Shows In HDTV!

Washington, D.C. (May 10, 2012) -- High-Definition TVs are now in more than 50 million U.S. homes and there are scores of high-def programming choices.