55 Years Later, Doctor Who Confirms One Way UNIT Hasn't Changed Since Jon Pertwee's Era

In the lengthy history of Doctor Who, a lot has changed over the decades, but some things appear to be fixed in time. Doctor Who originally began airing on TV all the way back in 1963. At that point, the show was a sci-fi series about an alien traveling in a blue box that was bigger on the inside, and while that core remains, many of the most definitive parts of the show were introduced over time.