Next on 'It's Always Sunny' and 'The League': November 19

The fresh November 19 episode of FX’s It’s Always Sunny in Philadelphia is all about “The D.E.N.N.I.S. System.”

Unfortunately for the originator, namely Dennis, the rest of the Paddy’s Pub gang doesn’t quite get the system when he explains how it’s a fail-proof way to seduce any woman.

A quick preview follows below.

Immediately afterwards, The League presents “Mr. McGibblets.” The guys tag along with Pete on a trip to the spa that was supposed to be in honor of his fifth anniversary, and Kevin gets Taco to try to scare Ellie into not liking her toy. Check out a preview for this episode below, too.

It’s Always Sunny in Philadelphia airs Thursdays on FX at 10pm ET and The League at 10:31pm.