My 3yo son is obsessed with Peppa Pig. He doesn't even sit properly unless he watches it at least for an hour. If I don't put it on, he starts crying. What should I do?

He has become habituated to watching tv. You can easily by diverting his attention to something else. Just like the others have mentioned give him a reason that Peppa has gone to sleep or gone to school or better still that the television is not working. If the habit of watching any programme as an addiction is not broken it will lead to severe problems when he grows up.