Ted and Barney fly to Philadelphia after using one of Barney's techniques to pick up women.  While in Philadelphia the boys might not score but they do something legendary.

How I Met Your Mother
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How I Met Your Mother Season 1 Episode 3 Quotes

Barney: You're in a rut.
Ted: I'm not in a rut. I have a routine.
Barney: Ted, what is the first syllable in rut-tine?

Carl: Compliments of that guy. [lifts drink towards Robin and Lily]
Lily: Really? Sweet.
Carl: Oh, for you, it's $6