What's a good midrange TV?

Episode 1235
Bill fromBill is looking to buy a midrange TV around Black Friday. He's thinking about Hitachi's 1080p 55 inch TV. Scott says that Hitachi got out of the TV business awhile ago, so chances are it will be an old model, and Scott would be hesitant about that.
Scott says that for a high quality, low cost TV, he recommends Vizio -- especially from the M-Series and up. The M Series is terrific if he can stretch his budget a tad beyond $400.