It’s Always Sunny in Philadelphia husband-and-wife team Rob McElhenney and Kaitlin Olson, along with a gaggle of fellow alumni of St. Joe’s Prep, are teaming up to open a second bar, at 1904 Chesnut St. Their first, Mac’s Tavern, in Old City, opened in 2010. The location most recently hosted a series of unsuccessful bars and clubs like Kokopelli and Pearl. [Philly.com]