What, really? Nobody here watches it? Well, the premise of the show is pretty simple. Mainsteram sci-fi. Man (Alien) travels through space and time (ending up in modern day London quite often), acquires many companions along the way (who tend to end up being 18-20 year old girls), and solves various contrived situations (usually through deus ex machina). The show's been running on and off since the 1960s, and is a staple of british culture these days. There was just a special released today for Easter.