The Wedding of Sarah Jane Smith is a two-part story of The Sarah Jane Adventures. It was first broadcast on BBC One on 29 and 30 October 2009. It is the third serial of the third series. It guest stars David Tennant as the Tenth Doctor, marking the first appearance of parent programme Doctor Who's main character in a spin-off show. Filmed after "The End of Time", the episode includes the final scenes David Tennant recorded during his first tenure as the Doctor.