If you don't mind a bit of action I personally the Fast and Furious franchise. But there is a lot of slang and not much proper english.

Hi. My favorite series are several, but think that mainly "The Walking Dead".

Friends is classical one, which has unique meaning for me. Recently, I watched Forever, the story tells a man who has a immortal body, and been living in the world for two hundred years. Very remarkble and impressive. How pity it only was finished one serie. It was noticed that it would cease.

Sawatdee khun krup Sara, I like the series Sherlock. It is a detective story based on Sherlock Holmes, but with some major changes. It is funny and interesting, and probably decent for learning English. I liked the movie "Eternal Sunshine of the Spotless Mind" with Jim Carey. There are also a lot of good kid's movies nowadays, that are just as good for adults. Some of my favorites were Despicable Me, The Incredibles, Madagascar, and Finding Nemo. Good luck with your English studies!

There are many,and it really depends on the style of show that you prefer. I really like Downton Abbey, because it is a kind of historical fiction and drama.