While it's probably long been the fantasy of nerdy women everywhere, it took a charity to get the shirt off of The Doctor's back.
As part of this year's annual Children in Need Telethon in the U.K., announced that the show will be auctioning off one of The Doctor's familiar tweed and bow-tie costumes, with all proceeds going to the children's charity. Smith announced the auction in character before unveiling a trailer for the "Doctor Who Christmas Special, The Doctor, The Widow and the Wardrobe."
While all sorts of bylaws make it difficult for Americans to tune in to BBC content online for licensing reasons, it would seem the good ole' limping dollar is good over at BBC headquarters. There's nothing in the auction rules that I can see preventing U.S. fans of The Doctor from bidding and buying the costume. Exchange rates would apply, and (with the pound running roughly double the dollar) an American fan would have to dig deep. But, it's a good cause.