Board Thread:The Panopticon/@comment-25566332-20140115180525/@comment-27280472-20161211170051

CzechOut wrote: Suggestion is not the same thing as statement. Doctor Who does not exist within the DWU, except inasmuch as there have been occasional stories which are set in the "real" universe and the real universe is somehow connected to the DWU. Remembrance is not proof of the existence of Doctor Who in the DWU, but there are about three comic stories where it's suggested the Doctor makes it through to the real universe in order to talk to the actors Tom Baker and Matt Smith, and the writer Sean Longcraft. But in all cases it's clear that the Doctor has travelled to a different universe than the one he regularly inhabits.

But you can't say "previous stories haven't definitively mentioned a show called Doctor Who, and this one does, so it isn't valid." By that logic you could exclude any story that introduces a new concept. Yes, it's a little metafictional. But in-universe it just means that the show Doctor Who might exist. Hospitality also mentions Doctor Who, just not in a context where characters from the show might complicate things. Just like A Big Hand for the Doctor mentions Blake's 7 as an in-universe TV show, Corpse Marker and Kaldor City feature actual characters from the show, and The Dead Men Diaries refers to both the show and the real Blake's 7.