It's Always Sunny season 13 was one of the show's weakest but also contained its best episode. 1 / 7
It's Always Sunny has run for 14 seasons so far and shows no sign of slowing down. 2 / 7
It follows the selfish, cruel misfits who runs Paddy's Pub and its a masterclass in dark comedy. 3 / 7
The characters rarely show signs of personal growth or self awareness. 4 / 7
Mac has come the furthest, accepting he's a gay man and in season 13's finale he comes out to his father. 5 / 7
He can only do this via dance, which was a surprising and emotional sequence in a show known for its darkness. 6 / 7
Season 13 had some misfiring episodes but "Mac Finds His Pride" remains a series highlight. 7 / 7