We have a TV on the wall of our patio. We don't use it that often, but in fall evenings it is sometimes fun to sit outside and watch the baseball playoffs. Also, that is the only TV we ever allowed a game system so we could always see our kids playing. The TV is under a covered area but close enough to the outside that rain will sometimes blow in and get it wet. It gets really hot a lot, over 115F in the summer. It is constantly subject to dust storms in the monsoon seasons.
For a while we considered an special all-weather TV like this one. If the TV had been completely out in the open, we probably would have bought one. But instead we bought a regular LCD TV -- just something from Samsung I think -- on sale at Amazon. The regular TV was 1/3 the price, and we figured that even if it died, we would still be ahead having bought two instead of one of the more expensive TVs.
The TV has now been out there for over 5 years and is doing fine. If you want a TV outside, unless it is directly in the elements, I have found that regular TV's are pretty durable.