BBC Announces Fourth Season of Doctor Who

While those of us in the States still don't know when we'll get to see the third season of Doctor Who (paging Sci Fi!), the good news is that whenever the cabler gets their act together, we're eventually guaranteed a fourth season of the time-traveling series, which currently stars David Tennant as the Doctor (more on that in a bit).

BBC has announced that Doctor Who will return for a fourth season of alien mischief sometime in 2008. Writer/executive producer Russell T. Davies acknowledged the additional season order by saying, "Series four is officially existing. I'm very excited, but we have known for ages."

What is under debate, however, is who will be playing the Doctor. Tennant has already filmed Season Three as the Doctor, his second time around in the role (he replaced Christopher Eccleston, who left after the first season and who has turned up as Claude the invisible man on Heroes). Tennant himself has not answered reporters' questions about whether he would return for Doctor Who's fourth season, while other, sometimes implausible, names have been bandied about in the media.

(Personally, I'm hoping that Tennant, my favorite Doctor to date, does turn up again in the TARDIS for at least another season.)

What is certain, however, is that Billie Piper, who played the Doctor's companion, Rose Tyler, is definitely gone. She was written out of the series and replaced in Season Three by Freema Agyeman, who plays medical student Martha Jones.

Season Three is set to launch on BBC One on March 31st, but our neighbors across the pond have just put up two new Season Three teaser trailers to sate your appetite while we await news of just when we'll get to see what looks like a pretty fantastic season.

Or, if you're looking for a little more info (and a bit more oomph), here's the season-long preview that ran with the Doctor Who Christmas Special, "The Runaway Bride" (starring the fabulous Catherine Tate), here.

Fingers crossed that we get an official launch date from Sci Fi sooner rather than later.

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Jace is an LA-based television development and acquisitions junior exec who watches way too much television for his own good and would love a TiVo for every room in the house. (He’s halfway there.) His blog, Televisionary, can be found at televisionary.blogspot.com.