My Mitsubishi 72 inch television won't turn on and the timer light next to the power button continuously flashes green. How do I fix this?

I had the same problem recently with a Bush tv, my solution is scrap it and buy a new one. 72" is big though, if the tv is still in waranty take it back to the supplier. With your size of TV you might want to try sending it to a TV Repairer as it would be hard to repair but expensive to buy new.