Since the end of Doctor Who 's fourth season, I've been going through a bit of Who withdrawal. I like having the Doctor on my television set each week and the long breaks between seasons (especially since the next batch of episodes will be four feature-length specials rather than a thirteen-episode season) seems especially harsh. So I was pleasantly surprised to learn that there IS a new episode of Doctor Who available to watch. Sort of, anyway. Next month, BBC Video will release the animated special Doctor Who: The Infinite Quest , which presents a brand-new story for the Doctor and Martha Jones. Originally broadcast in thirteen segments of three and a half minutes during children's series Totally Doctor Who , The Infinite Quest is a sort of flashback to the days of the Doctor traveling with Martha Jones and if you're a fan of that particular pairing, the special is a rare treat. David Tennant, Freema Agyeman, and Anthony Head lend their voices to this animated tale