I seriously squealed through the entire 41 seconds the first time I watched it. And second. And third. I don't think I'm going to be able to stop fangirling.

Technically, you *could* start with Matt Smith's episodes, but I don't recommend it. You lose a lot of back story. And David Tennant is my favorite Doctor, so I always say watch his seasons. But yeah, if you want the full gamut, start with the beginning of the reboot - 'Rose'. A lot of it can be pretty cheesy and production value is nowhere near what it is now, but it's still great. I had my husband start with the reboot, and just gave him a list of all the episodes he didn't really need to watch since they didn't really make you miss anything. I think with Matts episodes, you have to watch EVERY episode since they are all linked together. Miss one, and it can get confusing.