Board Thread:The Panopticon/@comment-20607870-20160107091519

It just occurred to me, if there was a Doctor Who special story which we would usually consider invalid due to general stupidity or disregard for continuity and the Doctor present within the TV story/comic/novel/audio/skit/webcast/game/short story specifically stated that the story was canon (breaking the fourth wall) would it be canon? As it would have been stated as canon though would it's non-canonicity overrule the fact it's established canon? Or would it's canonicity be enough to make it canon? Just wanted to know in case something like this occurred. For example Dimensions in Time, if it said in a through away gag that it was canon, would it be and would this apply for any BBC non canon? 