Sandwiched between Total Wipeout and So You Think You Can Dance? on BBC One on Saturday evening, the Doctor Who trailer – an unusual but fascinating extended teaser – concluded with the words “Doctor Who Easter 2010″.

A quick check of the 2010 Kasterborous diary reveals a date of April 3rd for the Saturday of the Easter weekend – assuming Doctor Who is staying as part of the BBC’s Saturday night line up, this could be the date we’ve been waiting for.

Meanwhile the trailer itself was a hallucinogenic mix of the recent promo image and the Doctor (Matt Smith) and Amy Pond (Karen Gillan) lying on a patch of grass looking at the stars. They clearly weren’t anywhere near a major city – such a clear night sky is near-impossible to find these days!

Also evident in the trailer was the change in tone, coupled with some visual hints of a time and space littered with deep, rich colours and freakish monsters. The sight of a bizarre, toothless being at the end of the trailer – coupled with the familiar Doctor Who theme (left right until the end) adds a welcome level of mystery to Season 31.

We’re truly into a new era of Doctor Who – and it’s possibly just 5 weeks away…