Laptop overheat all of a sudden mega?

I've got my laptop and today it got megaa hot (90 degrees) while playing a game, which he hadn't done before it was always 60 degrees. And because it's so hot now I have another problem and I only have 30 - 40+ every 3 seconds 0 fps for 1 second. Could someone tell me why he's so hot

I would clean the fan sometime. In most cases this will help.

My television suddenly has a bad picture… But which model? You can't really help without information…