Paul Cornell wrote The Girl Who Loved Doctor Who, a comic illustrated by Jimmy Broxton. It is up for a Hugo Award at the 2014 World Science Fiction Convention, LONCON3 and free to all members of the convention.
Yes I voted for it so fingers crossed for the award ceremony!
The story is simple, the Eleventh Doctor visits a parallel world in which there is a TV programme called Doctor Who. He is mistaken for a cosplay fan, meets Matt Smith and defeats a cyberman. All this is told around a 10-year-old girl who is a big fan.
I was reminded of a Star Trek short story I read many decades ago in which Shatner and Nimoy find themselves on board the real Enterprise. Oddball ideas like this are fun occasionally and do play with the fourth wall. Taken as such this is entertaining and for me the best of the candidates for the award (then I might be a bit biased towards the subject matter).