One Year On was a special episode of Doctor Who Confidential broadcast three days before the premiere of New Earth as part of BBC Three's Doctor Who Night. Unusually for Doctor Who Confidential, this episode did not feature any specific Doctor Who episode; it was essentially a general preview of Doctor Who Series 2.
New Earth got its own standard Doctor Who Confidential episode, New New Doctor, after its broadcast.
Not every person who worked on this episode was credited. The absence of a credit for a position doesn't necessarily mean the job wasn't required. The information above is based solely on observations of the actual end credits of the episodes as broadcast, and does not relay information from IMDB or other sources.
Home video releases[]
As of May 2019[update], no version of the episode is available commercially.