I have bought a new 65' plasma TV by panasonic tc-p65vt50. I was advice by asales person that I need to recalibrate my TV after two months of use. Is it tru, please advise

Thanks
Khushal

You should have reset the color settings when you brought it home. Many times these tv's are set to overdrive the intensity of the color on the showroom floor. They try to sell you a service to do what you can do with a little research.