Not CNN, but for whatever its worth, you can watch many TV shows at hulu.com.
Go to their website, click on TV, and then click on Popular Shows.
They also have a limited selection of movies.
They put short ads in the videos.
I'd recommend the TV series LOST, you can look up tv series or movies on imdb.com for more info about them, to see how highly rated they are and to see if they are something you'd like to watch.