The Trip of a Lifetime (TV story)

 was a narrative trailer advertising the first series of revived Doctor Who. It featured Christopher Eccleston in character as the Ninth Doctor, with Billie Piper also briefly appearing in a new shot as Rose Tyler, though she had no lines. Prior to the trailers release, three 10 second teasers, each focusing on a different character, began airing from 8 March 2005. The characters featured were the Doctor, Rose and the TARDIS. Also on 15 March 2005, a second 25 second trailer featuring Rose began airing on CBBC.

In the trailer, the Ninth Doctor is depicted as running from a great explosion, implicitly the one that blew up Henrik's during TV: Rose, the first episode of the series. The Doctor's escape from Henrik's was never depicted in the episode, thus the trailer explains how he did it.

Summary
The Doctor asks you if you want to come with him in the TARDIS, warning you that it won't be safe, or easy, or restful — but stressing that if there's one thing that it will be, it is "the trip of a lifetime".

Other series 1 trailers
There were also other non-narrative clip based trailers advertising the first series.

A 30 second teaser from BBC One's winter highlights presentation was released online on the Doctor Who website on 2 December 2004, before airing on BBC One from 1 January 2005. It featured clips from Rose with the tagline ''It's almost time... ...but not yet.''

Five 10 second teasers were released, one per day, between Monday 13 June-Friday 17 June 2005, followed by a 35 second one on Saturday 18 June, counting down to the broadcast of The Parting of the Ways. The first trailer featured the tagline Time is up in 5 days..., the second 4 days... etc., and the last Time is up...

Immediately after the series finale, a 50 second "best bits" trailer aired celebrating the first series, finishing with the tagline Countdown to The Christmas Invasion starts now...

Home video releases

 * A partial set of teasers and trailers were included on the Doctor Who: The Complete First Series DVD box set released on 21 November 2005.

Also included were:
 * A 47 second documentary, Storyboard of Opening Trailer, featuring storyboard artist Jonathan Maris' storyboards of the trailer.
 * Easter egg: a 53 second alternate edit of the trailer.