It's Always Sunny in Philadelphia

The show began as a $200 digital camera project that was later sold to FX by executive producers/writers/stars Glenn Howerton (That '80s Show, Must Love Dogs), Charlie Day (Law & Order, Third Watch) and Rob McElhenney (A Civil Action, Wonder Boys) who play Dennis, Charlie, and Mac, respectively. Dennis' sister, Dee, is played by Kaitlin Olson; Danny DeVito joined the show in its second season as Dennis and Dee's dad, Frank (marking DeVito's first regular TV role since Taxi).

It's Always Sunny in Philadelphia's humor comes from the offbeat scenarios in which the friends find themselves; the humor is dark and adult, and none of the characters are particularly admirable. For example, when Charlie's ex-girlfriend informs him that he's the father of her child, it inspires Charlie to attend a pro-choice rally in the hopes of meeting another woman. In another episode, Frank returns to tell Dee and Dennis that he and their mother are divorcing. Frank proceeds to call his wife a "whore mother" who is "on vacation banging one of the boys she hangs out with." Younger viewers might find the physical hijinks funny, but the writing and subtle jabs at society's hang-ups will fly right over their head.