It's Always Sunny in Philadelphia2005 | TV Show

Cast & Crew  |  Episode Guide

Seriously dark comedy about four dissolute friends who run a struggling pub in Philadelphia. Dennis, Dee, Mac and Charlie are absolutely (even gleefully) amoral. They're 'Seinfeld' characters on steroids, clowning their way through story lines that 'Seinfe (more…)

Premiered: August 4, 2005

Rating: TV-MA

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Season 5, Episode 10 The D.E.N.N.I.S System

First Aired: November 19, 2009

Dennis tells the gang how he seduces women, but none of them can get the hang of it.

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Previous Episode

Mac and Dennis Break Up

Season 5, Episode 9

November 12, 2009

Next Episode

Mac and Charlie Write a Movie

Season 5, Episode 11

December 3, 2009