We went though this with dsd. Turn it off at the wall and tell him it is broken. He will crack but if it doesn't work it doesn't work. If you start playing with his toys he might join in or put the toys wear he can get them. Make the toys look interesting. Do things like, play dough, drawing, painting, blocks with him. Take him outside if you can. Our tv would break every day, fix at nap time then break after nap time. It was a bit of a pain but it worked for us.