Well, that 2005 monitor/TV didn't last very long. Sometimes, I had to turn it on and off again ten times to get a picture. During the first year, I tried all sorts of remedies the Dell techs gave me, but nothing worked. They sent me another TV, and it had exactly the same problem. I kept bugging them after the one-year warranty had expired.
I found out on the Dell customer forum that many, many people had the same problem. Eventually, Dell started replacing the defective monitors with a newer, 32-inch model. I contacted Dell again, and they said they'd send me another monitor as a "one-time exception." Well, the new monitor had HDMI and a lot of other nice features, and it has worked quite well. I did have a bout of non-operation after a lightning storm, but I got it working again after some fooling around.
I'm afraid to unplug it from my UPS, because unplugging it means I have to do a reset to get it working again.
But most of the time, it works very well. And hey, it cost me only something like $2,000 for my 32-inch monitor. That's what I get for being an "early adopter."
-Joe-

P.S. I don't think Dell makes TVs any more.