Sesame Street is a good idea, just be careful with it. Years ago, all the characters pronounced words correctly so children would learn them correctly. In the last 15 years or so, some of them lisp their words to sound "cute." Be careful not to learn incorrect pronunciation due to this. It's a good resource for simple language, but make sure you double check what you learn from Sesame street.
Please don’t throw stones at me for recommending Sesame Street. I often pick up lots of very useful phrases in watching its episodes. The storyline in each short segment is simple. The puppets and actors are placed in different situational settings and they use different simple phrases and easy-to-learn expressions in funny dialogues plus silly catchy songs to help learners remember the themes and concepts better. I don’t know if there is any educational TV program that has been around longer than Sesame Street. (Since its first season in 1969, it has currently reached its 45th season, that is 45 years!) Each episode on average costs more than half a million dollars to make. And it does reflect in the quality of its educational content.
Sesame Street is not just for babies (but also for English learners like you and I), give that show a try, you might like it!
Everybody loves Raymond.
There are los of them. If you want to learn Amerian English ,"The Big Bang Theory" or "Broke Girls" should be your first choice, I think. while, if British English, you might go to see “Downton Abbey”.