There's just simply not enough people watching Grace and Frankie, which returns for its fourth season on Jan. 19, and it's a travesty. The show, which debuted in 2015, is probably one of the most delightful modern comedies and manages to pair whacky hijinks with the emotional bond of strong friendships. And now that Friends star Lisa Kudrow is joining the show, there's simply no reason to miss out! Don't believe us? Here's why you should binge Grace and Frankie this year if you haven't already.