I occasionally have a chance to watch Dr. Who (I'm old enough to remember the Jon Pertwee and Tom Baker years... maybe I shouldn't admit that). The series restarted around 2005. It's a fun, goofy well done show. I'm never entirely sure what's going on, but that's part of the fun.
David Tennant did a great job as the 10th Doctor. Here's a video of his visit to the Friday Night Project where he plays a slightly different role. He's obviously an extremely versatile actor and has great legs, too.
Friday Night Project - David Tennant