Rerun
A rerun or repeat is a rebroadcast of an episode of a television or radio program.
The Evil of the Daleks was the first Doctor Who serial to be repeated in its entirety. This occurred between June and August 1968, when the serial was aired to fill the gap between seasons 5 and 6, with a two-week break between episodes three and four to accommodate the BBC's extended coverage of the Wimbledon tennis tournament. Unlike most reruns, the repeat was actually worked into the narrative of the series, by having the Second Doctor present the event to the new companion Zoe Heriot via a telepathic projector hidden behind one of the roundels of the console room. For the repeats, episode one had an added voice-over by Patrick Troughton and Wendy Padbury immediately after the opening title sequence referring back to the fact that this was being "shown" to Zoe.
Since 2005, episodes of the revived Doctor Who series are typically rerun on BBC Three or BBC Two in the week following their premiere on BBC One.