Doctor Who is just the title of the show. The character is known only as the Doctor. But, there have been plenty of lines of dialogue where they’ll say something like “Doctor who?” And, they’ve had more creative ways of doing it too. For example, his companion Ace used to refer to him as Professor. Once, she said, “Professor? Doctor, who are you?” So, they’ve done stuff like that. But the character is known only as the Doctor. He has used the alias of Doctor John Smith on occasional, but that’s not really his name.

With the original series, you can generally jump in at any time. Well, it depends on how they air it. It was originally half hour episodes then at some point they went to hour episodes. A single story might span 4 or more episodes. So, in those cases, obviously you want to start watching at the beginning of a story. Some stations, such as my local PBS station, would air an entire story in one night. Saturday night’s were typically Doctor Who night. It’d start at 10:00 and run until midnight or longer. But, that way you got to see the whole story.

With the new series, the stories are generally an hour and standalone, but there have been some 2 and 3 parters. But, you really want to jump in at the start of a season, because the new series has made use of season-long story arcs. So, there’s generally a little something in each episode that will slowly build to the finale. This past season, they used stuff from the previous three seasons as well. So, that was pretty cool.

There’s only one Doctor, but he has different incarnations. You see, if he dies, he can regenerate. He can regenerate 12 times, so there would be a total of 13 different Doctors. Same character, different incarnations. Each has a different personality.

You could, of course, start with the first episode.

Actually, I really don’t listen to any music anymore.