When you think of mashing up two decades-long-running pop-cultural entities, I'll bet you don't think of Peanuts and Doctor Who.→[More:]
But it seems to be becoming a meme, started by one artist with Snoopy's Tardis Dog House (and let's face it, Snoopy's home WAS bigger on the inside). And now, TWO of the webcomickers whose work I enjoy have come up with plays on the sign on Lucy's Pychiatrist Booth: The Doctor Is In. The Doctor Is In.

So who is the Little Red Haired Girl? Amy Pond or River Song? (We'll find out soon on BBC and BBCAmerica)