In article ,
whit3rd wrote:

On Wednesday, October 21, 2015 at 9:37:13 PM UTC-7, wrote:
I've worked in broadcast and post production since 1976 and calibrated many
monitors, some used for THX film transfers and verified by their tech.
Calibration was mandatory with CRT monitors and on a regular basis. The new
TVs are amazingly consistent and I find no desire and certainly no need to
'tweak' them. In fact, unless you're very qualified I would not allow you
to touch my TV.

Generally, there's no calibration in an LCD TV that requires touching.
Digital signal,
not affected by movable magnets or variable resistors.
If you use your TV for a computer monitor, though, and have a color printer:
you ought to calibrate the video card or the printer driver so that the
color prints produce the same colors as the screen display.
Getting the correspondence right is important for artistic uses,
and requires
(1) controlling reflected light off the screen
(2) getting as much color gamut and contrast on the screen as on the paper
(not easy, might require special paper)

I'm pretty sure it's the other way around -- any decent screen will have
a much broader gamut than any subtractive color process (i.e. any sort
of image printed on paper). Same with contrast ratio -- the screen wins
by an order of magnitude or better.

Isaac