Assuming you're not going to be transfixed by Who Knows Ireland Best? (8.30pm, RTE1: three hoteliers, three tattoo artists and Derek Mooney = mesmerising ), this episode sees guys invited to a wedding of a mutual friend. Worried that he'll run into his ex-girlfriend Caroline, Nick asks Jess to be his date. Schmidt is on the prowl for single women, so he ends up bumping into the overly aggressive Gretchen, who he sleeps with at every wedding reception even though they openly hate each other. Meanwhile, Winston takes his role as an usher very seriously, and gets competitive on the dance floor with a young guest. Zooey Deschanel stars in this, didn't you know?