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 Tyler 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. Though Series One episodes like Dalek and The Parting of the Ways described the end of the Last Great Time War as a great inferno, no source drew a link between this explosion and the one that supposedly ended the conflict. Eventually, stories like The Day of the Doctor and Doctor Who and the Time War gave accounts of the final day, cementing that The Trip of a Lifetime was not depicting the end of the War.

"Do you wanna come with me? Because if you do, then I should warn you. You're gonna see all sorts of things. Ghosts from the past. Aliens from the future. The day the Earth died in a ball of flame. It won't be quiet, it won't be safe and it won't be calm. But I'll tell you what it will be. The trip of a lifetime."

- The Doctor

"I've got a choice. Stay at home with my mum, my boyfriend, my job. Or chuck it all in for danger and monsters and life or death. What do you think?"

- Rose Tyler

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.