Theory:SJA television discontinuity and plot holes/Death of the Doctor


 * Jo Grant forgot her encounter with the Eighth Doctor in the 90s in Genocide.
 * The nature of her encounter involved the creation an alternate timeline.
 * Novels aren't canon, especially if overuled by a television show.
 * Not true. Canon is a term that has been constructed by fans. A Doctor Who official once said there was never any sort of canon used by the creators.
 * Yes, but canon refers to anything within the Whouniverse. It refers to what counts, as such, and what doesn't, so in a way, every TV show has a canon to distinguish sketches, etc, from the real thing. Novels are generally not considered canoncical, especially, as said above, if they contradict sources that are definately canon; Doctor Who, SJA and Torchwood.


 * Wouldn't Sarah Jane object to Tia Karim being in her attic and seeing Mr Smith. Previously she didn't want UNIT to know about him.


 * She may have become more lenient, seeing as she has had numerous contacts with UNIT (During the Horath situation, Dalek invasion etc.)
 * Seeing as it's evident that UNIT are aware she runs a anti-alien-invading force, that she's bound to have technology in there. But they aren't Torchwood, so they might let her have it.
 * Perhaps even the Doctor told them to leaver her alone.
 * She could have been so distraught by the news of the Doctor's death that she didn't think about them seeing Mr. Smith.
 * I agree, this seems to contradict previous episodes in which Sarah tried to cover up the existance of Mr Smith from UNIT. I think the most logical explanation is that she was in shock, so forgot.