A lot of people are wondering what makes the Doctor Who TV series the longest-running show. Of course, it is obvious that a lot of work was put into the production of Doctor Who. But aside from that there are also other factors that contribute to the success of this show.

1. Story-line: It has one of the most unique story-line in the sci-fi TV series category. The Doctor Who show always has a new element introduced in every episode. This for sure does not make the story redundant and boring. Thanks to the creative writers and the crew of the show who are able to continuously provide the audience excitement and suspense.

2. Characters: Of course, any show or movie will not be complete without its characters. It is not a secret that different actors have played the lead-role in Doctor Who. But this did not dampen the show instead the viewers always has a reason to tune-in on every episode.

The next are the villains, where in a new villain is introduced from time-to-time. This is very effective since the viewers are not able to predict the next move of each character. It leaves the audience wondering what this new villain would do.

3. Audience: Finally, a show will not last long without the support of its audience. Though, the Doctor Who show became popular in the UK it was still able to penetrate several countries. With this, its fan-base just grew to millions. Doctor Who is already a part of the British culture which means that the show will not stop anytime soon.

These are the major factors that affect the success of the Doctor Who show. Even if the Doctor Who show is already successful, the cast and crew are still working hard to make the show the best. This just proves that hard work really results to success.

"The Doctor Who" show is the best. The reason is story absolutely different from other serilas. All characters acted good. They all are looking as a real person in the real life.One of my favourite show.I really like this show.