i'm shopping for a toshiba 34HF84, and it seems that the only one i can get is a bestbuy floor/demo model. i really want this model TV, but i'm worried that sitting on the floor at best buy being on all the time has prematurely aged the TV.
Difficult to answer definitively. However, they normally carry the standard warranty. Has the picture tube aged? Most definitely, especially if it is left on the high contrast and brightness settings which is common for display purposes. I Guess I would come down on the side of caution and only purchase an inexpensive set used as a display model. But I'm a cautious fellow. See if they will throw in an extended warranty at no extra cost.