Actually, if you don't mind...
I've decided to do a pointless trivia on Doctor Who. Not sure how many random useless facts I can think of, but I'll see what I can do. As every fan of the show (except the most casual ones) will tell you, the main character's name is The Doctor, not Doctor Who. However, the British media, the BBC, series materials and the original credits all refer to him as Doctor Who, so it is okay to use the term (though it might make some people angry). William Hartnell, who played the First Doctor, was eventually asked to leave the show due to his declining health. Rather than kill off the character, the BBC came up with the idea of the Doctor regenerating when he dies, allowing them to have an explanation for replacing the actor with someone younger and fitter. While "Reverse the polarity of the neutron flow!" is seen as a catchphrase of sorts of the Third Doctor, he actually only ever said that exact phrase once (or maybe twice) in the entire series. He did reverse t...