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IT'S ALWAYS SUNNY IN PHILADELPHIA "The D.E.N.N.I.S System" Season 5 Episode 10

Watch a sneak peek of IT'S ALWAYS SUNNY IN PHILADELPHIA "The D.E.N.N.I.S System" Season 5 Episode 10 which airs on Thursday November 19 at 10pm on FX.

Episode Synopsis: IT'S ALWAYS SUNNY IN PHILADELPHIA "The D.E.N.N.I.S System" Season 5 Episode 10 - Dennis reveals to the gang how he seduces women.