In its four seasons on the air—or at least online, where the best stuff increasingly resides—Bojack Horseman has cemented itself as one of the best shows on television, animated or otherwise. There is almost too much that can be said for it: that nearly every frame of any given episode could be isolated, framed and hung on a wall; that it has one of the best casts on television; and that it is, along with Crazy Ex-Girlfriend and You’re the Worst, one of the boldest explorations of mental illness in popular culture.

The show’s fourth season, which was released earlier this month, goes some of the way to addressing the few criticisms that have been fairly levelled at in the past. Most notable among these is the fact that, despite being a horse, the titular character is still essentially a white man, the show failing to transcend the tendency of television to concentrate on such characters at the expense of others. The fourth season’s ninth episode, ‘Ruthie’, which is almost solely concerned with Amy Sedaris’s Princess Caroline, as well as its episodes dealing with Bojack’s mother Beatrice (Wendie Malick), address this criticism head-on.