Comedy News TV Videos ‘It’s Always Sunny in Philadelphia’ season finale preview Written by Lena Lamoray on March 18, 2015 Tonight, at 10/9c on FXX, watch the season finale of It’s Always Sunny in Philadelphia. “Asskickers” isn’t just a hot new way to work out, it’s a way of life…and maybe a cult. Related posts:FX and FXX set summer premiere dates for original series'You're the Worst' season finale preview and selected scene'You're the Worst' promo and selected scene