Hi we have a mitbushi 73 in it shows great for 35 minutes then the colors turn blue and green

Sep 26, 2018
Wd73740 mitsubishi fob shows great but after 35 minutes the colrs on th screen show blue and green and purple. 73 inch mitsubishi. O want to know if it is an easy fix. Or who can fix it.
tv that size have in home repair from the vendor and best buys. if you got the tv some place else try to set up home repair service.