Setting up a TV display for accurate colour poses a few more difficulties than with your computer monitor.
Datacolor have produced a version of the Spyder4 monitor calibrator to address this for TVs and projector based systems (front and back projection).
Review Link: Spyder4TV HD
It takes a bit of experimenting to get it right, [...]
Better colour for your TV and reference monitors
Spyder 4 TV/HD calibrator
Recently, I’ve reviewed all the main monitor calibration and profiling packages. Not only do they offer improved accuracy and precision, but wide gamut and LED backlit displays, no longer cause problems.
Datacolor have just announced a new package specifically aimed at TV/Video [...]