Walford

The Tenth Doctor believed the phrase, "This is going to be the best Christmas Walford has ever had" was among the unluckiest sentences that one could utter. (TV: )

In 1972, Jess Collins walked past the 33 to Walford. (COMIC: )

Behind the scenes
Walford is the fictional east London borough in which the soap EastEnders is set.

The Tenth Doctor's belief that it was unlucky to claim Walford would have a great Christmas is a reference to the soaps infamous tradition of have depressing Christmas specials, in which especially dramatic events, ranging from major revelations to death, would occur.