Spoilers are precisely defined here. Rules vary by the story's medium. Info from television stories can't be added here until after the top or bottom of the hour, British time, closest to the end credits roll on BBC One. Therefore, fans in the Americas who are sensitive to spoilers should avoid Tardis on Sundays until they've seen the episode.
Eight extra pages are regularly added from this issue.
This issue includes an eight-page pullout, marking out key dates in the Doctor's seventeen-year history, including October 11th 1979 (Marvel Comics launches Doctor Who Weekly) and August 13th (Doctor Who Weekly becomes a monthly publication as from issue 44).