The Android Invasion

The Android Invasion was a self-described "part of [ the Doctor's] life". As the Eleventh Doctor browsed through Ally's Doctor Who DVD collection, he came across this story, and exclaimed that if he knew at the time that its title was The Android Invasion, "it would have saved a lot of bother!" (COMIC: The Girl Who Loved Doctor Who)

Behind the scenes
The Android Invasion is a Fourth Doctor serial. The line by the Eleventh Doctor in The Girl Who Loved Doctor Who mocks how the title would have revealed to the audience what was going on long before the Doctor realised the people around him in Devesham were android duplicates.

Though not mentioned in the comic, Elisabeth Sladen, also mentioned within the story, starred in it.