Polaroid & Westinghouse in your "throw-away" brands list!
Those are two "old" brands that used to have great reputations...but reps.
Polaroid and Westinghouse make some of the worst TVs.
I don't have a problem with with Vizio, but they do have their problems. Vizio doesn't normally get voted for their quality, but more for their value. The only problem with that is that their prices have stayed relatively the same, while the industry's have had room to drop, putting them at about the same price. So, why get a Vizio, when you can sometimes find a better brand? I'm talking about real tv's, not ones that are small enough to be considered a computer monitor. If you want great quality from Vizio, one that is accompanied by equally great consumer reviews, you have to get a pricier Vizio. When it comes to the living room, I would rather spend a bit more money to get the best I could get. I would leave the second rate stuff for rec/bedrooms. With that said, the only 4 brands I seriously look at are Toshiba, Panasonic, LG, and Sharp. With the other brands, it seems like even though they have equally as great of a product, your luck with their problems seems to come at the flip of a coin. LCD/Plasma tv's are becoming so problematic that a review of 3/5 stars means that the tv is good. That's CRAP!
If you check LCD reviews(for quality, not reliability) for tvs 50"-55" and up, the best ones are LG, Panasonic, Samsung, and Sony.
42" - 49" = LG, Panasonic, Toshiba, Vizio, Samsung, Sony.
32"-37" = Panasonic, Toshiba, LG, Sony
Again, those are for initial testing for quality of what you're viewing.
For reliability, it's almost a luck of the draw. All brands have their problems, though some are plagued with them. I'll stick with Panasonic/Toshiba/LG/Sharp...they seem to be amongst the most reliable.