Although its features can't compete against typical consumer plasmas, the "professional" Panasonic TH-50PH9UK's excellent picture quality and price make it the best value at this size, bar none.
The midlevel Samsung LN46A550 LCD TV strikes an excellent balance between price and performance.
With the accuracy of its THX mode and great black-level performance, the Panasonic TH-50PZ800U is one of the best-performing HDTVs available.
Panasonic's TH-42PX80U 42-inch plasma sets the picture quality-to-value standard for entry-level plasma TVs.
If you don't mind its red frame, the Samsung LN52A650 LCD TV will reward you with a massive feature set and excellent picture quality.