I have be watch Dr. who since Tom Baker be on the show . and , until David Tennent arrive , Tom be definately `` the doctor '' . the second series have to have some of the best , most interesting episode for this tv show so far . there be also blooper , a video diary by David Tennant , BBC Dr. who comercial , audio -lrb- and some video -rrb- commentary by various writer , director and actor -lrb- include David Tennant and Bille Piper -rrb- and , my favorite , a ten minute little nugget that the BBC put together for a charity . it bridge the gap from the last episode in season one -lrb- right after the doctor regenerate -rrb- to right before the season two episode where they land in Cardiff for Christmas . it be definately a wonderful dvd set !