please what is the name of the movie

there is an old movie in which the movie is about group of peoples whom are black American actors somehow in the movie they figure out that they can step in and step out of the TV from their home when they step in they become animation characters which whole different world inside the TV and when they step out of the TV they become a real human being and interact with the world I guess this movie is about a magical TV which can change people into animation when they step in or there is a one person who can do that this movie is not about sport romantic but the main actors is a back American also his friends are too what is the movies name