Tennant is weird. Luckily it's in such a cute way. ;)

I do have to admit, if I was in a room with the Ood I probably wouldn't be able to stop touching them either. There's something so simultaneously adorable and disturbing about them.

I keep hearing "You must watch old Who! You must watch old Who!" and nothing's clicking. What old Who episode(s) would you recommend as most likely to entertain a modern day girl with a short attention span?