I agree with AnnieSea's answer. The things you like will keep your interest the longest. Simple exposure to language can help immensely. Although, if you are looking for actual learning material from TV shows and movies, try looking for some kids shows. Shows made for toddles will certainly be very basic. While they wont help you with "adult" conversation, they may help you build a foundation for your language. Though this depends how far along you are in your studies. Good luck with your studies!

I think that internet is the most effective way to learn English like youtube and especially the podcasts.

My feeling is that any television show or movie that interests you will help. If you don't like the subject, then your attention will wander. Find a show or a movie that you enjoy.

It depends on what type of English you want to learn. Depending on where and when a T.V. show is set, it could teach you something completely different. For example, if you watch an American show you will learn to talk with an American accent. A British show set in the Victorian era will teach you a British accent but you will learn words that might not be widely used anymore. Also, different accents and dialects can be learnt. So, I'd suggest watching a lot of different shows so that you can have a better understanding of English in the future. II agree that you should watch things you find interesting. Maybe something that has a Mandarin and English version? That way you can watch both and know the basic story while you follow along (I've done that with books too) and you can do it with any level of difficulty. Hope that helps. ^_^

it sounds good ! i will look for it. thank you! i can learn american culture and history from it !