Master list HERE
Day 12 - An episode you've watched more than 5 times
Ol Skool-Star Trek-The Trouble With Tribbles. Both in repeated reruns on after school tv and from back in the day when I went to Star Trek conventions and they would show episodes on the big screen. I remember one con where it seemed that everytime I went into the film room, it was Trouble With Tribbles. I didn't mind.
Nu Skool-Dr. Who-Blink-Thanks to repeated reruns on BBCA and Sci-fi and my wonderful Tivo. Much as I love the Capt. Jack eps, especially The Empty Child and The Doctor Dances, I find Blink to be the one episode I can watch over and over and over and still find new things to love in it as well as continuing to appreciate my favorite bits like "Life is short and you are hot."
While one is broad comedy and the other is witty horror, I think they are two of the best scripts ever written for television.
I love you David Gerrold and Steven Moffat.