Now, if you're not a fan of the show, you won't care. If you're a fan, but haven't seen the episode that aired this past weekend, well, *SPOILERS*
If you saw the episode, you saw that The Doctor told Osgood that his first name was "Basil."
(Oh, and shameless plug for Larynn's review of the episode over at Doctor Who LaB.)
Now, who among you were actually surprised when The Doctor said his name was Basil? Did you really think he would say "Frank" or "Harvey" or "Sarah" or "Mr. Right" or "Spacemonkey" or "Lactose the Intolerant" or "Keln." Not that those aren't good names. They're perfectly fine names. But, for The Doctor, does any name fit more than Basil? Okay, maybe Spacemonkey. But, really, when you think Doctor Who don't you really think "Basil?"
Of course you do. And so does Steven Moffat and Peter Capaldi and everyone else who works on the show or watches the show.
I'm unsure whether to say "thank you" or "you're welcome." Either will do.