Is there a need to calibrate big screen TV?

Answer 1

It depends on the type of big screen. Large plasma or LCD displays need no calibration although there are some set up procedures in most that will help to optimise the image when it is installed.

Projected television displays may need an amount of calibration. The latest rear projected televisions use LCD or DLP technology and these will require nothing more than a focus adjustment. Even that adjustment is not available on many models.

Older projectors use three CRTs (vacuum tubes similar to older televisions). These televisions need to be set up to produce a square image positioned properly on the screen and then the red and blue images need to be aligned to the green image. It's a process that can take several minutes to an hour or more. Once done, the image tends to remain stable unless the television is moved. As the television ages, it will normally benefit from another set up that will improve the image quality. Each model has a similar set up process but the manual will provide full and detailed instructions.