It's a perfect show. There are so many hilarious lines. My favorite has to be when tracy says "don't make me show you the back of my hand" and then on his hand is written "please be nice to me".
My second favorite show of all time (second only to Arrested Development). Many shows have memorable/quotable lines, but 30 Rock has more memorable lines per season than many shows do in their entire run. It is rapid fire on another level.
My favorite that I use on a regular basis, from Tracy: "I can't change! I'm like a chameleon -- always a lizard."
