Actually the game isn't too bad. It's not overly complex or elaborated in any way, but a proper quick and easy skirmish for an entertaining evening instead of watching a movie or so. One or two hours will see a game. There is mainly the TV show that is what it makes it for me and the surprise sometimes that your opponents are not always what they seen to be (many shapeshifting species!). I really like that you can use all terrain you have as the Doctor is travelling through time and space which makes a good excuse for everything on the table.
I would say it is worth a try, the more if you like the show.