I think a lot of the posters in the thread are confusing continuity and canon.
Continuity is what already happened when
Canon is what's officially part of the series, regardless of what happened in it and when.
It's easier with some other franchises - the word canon was originally used for the Sherlock Holmes stories: if Conan-Doyle wrote it, it canonically happened, whether it conflicts with continuity or not. If he didn't write it, it didn't canonically happen.
In Trek, you've had GR and assorted showrunners passing judgement on canon, which has changed: Currently the Animated Series isn't canonical. The Voyager novel Mosaic was the canonical background to Voyager when Jeri Taylor was running the show, and then was struck from the canon after she left.
With Dr Who, nobody from the BBC, none of the successive showrunners, and none of the show's creators have laid down the law on what constitutes canonicity. Ergo, it's left up to the individual audience member.
End of.
Continuity is what already happened when
Canon is what's officially part of the series, regardless of what happened in it and when.
It's easier with some other franchises - the word canon was originally used for the Sherlock Holmes stories: if Conan-Doyle wrote it, it canonically happened, whether it conflicts with continuity or not. If he didn't write it, it didn't canonically happen.
In Trek, you've had GR and assorted showrunners passing judgement on canon, which has changed: Currently the Animated Series isn't canonical. The Voyager novel Mosaic was the canonical background to Voyager when Jeri Taylor was running the show, and then was struck from the canon after she left.
With Dr Who, nobody from the BBC, none of the successive showrunners, and none of the show's creators have laid down the law on what constitutes canonicity. Ergo, it's left up to the individual audience member.
End of.