Tardisode

Tardisodes are mini-episodes of the television programme Doctor Who created to accompany the 2006 series of the programme. Made by Doctor Who producers BBC Wales, each Tardisode is approximately 60 seconds long and serves as an introduction to one of the actual 45-minute episodes. They were available on the BBC Doctor Who website free of charge, and on mobile phones by subscription. They were produced as an effort by the BBC to expand the reach of Doctor Who beyond the television series, and include footage not seen on television, and some back-story for the following episode. Their name is a portmanteau of the words TARDIS and "episode".

The first Tardisode, a prequel to "New Earth", was released by the BBC on 1 April 2006; it was promoted in the accompanying children's series Totally Doctor Who. New Tardisodes were released a week before each episode aired, directly after a new episode had finished airing on BBC 1. They were created by the same team that produced the interactive Doctor Who episode Attack of the Graske in 2005.