Tv turns off after watching an hour -\r\nthen

Hi if your tv is a DLP or LCD and you hear clicking or like wanting to turn on ,most likely its an issue with the ballast which is the board that powers the lamp.(Discard if tv is )If you hear buzzing or spinning noises it could be you color wheel.Also check if fans are running ok or if they are dusty, clean them with an air pressure can if they are dirty.It could also be time to replace the lamp.they normally last 6000-8000 hrs if it's a Philips brand if it's na Osram lamp they will last 4000-5000 hrs 1-2 yrs.God bless you!