Apocalypse Cow was an okay episode. I have watched 17 other Season 19 episodes, and there were 5 bad, 7 okay, 1 good, and 5 really good episodes. This episode falls in the okay category. In this episode I liked the relationship between Bart and Lou, that was very sweet. But an even sweeter relationship is the relationship between Bart and Santa's Little Helper. That's something special. But there something else I want to talk about. The Spider Pig cameo. Yes that's right. Spider Pig was shown briefly in this episode for around two seconds. Isn't that soo amazing!!! The last time we saw Spider Pig in this season was the season premiere, and now our favorite character is back. I have a theory that Spider Pig can travel through multi verses, like Miles Morales. Anyway, that was a very cool cameo and it was easily the best part of the episode. Spider Pig, Spider Pig, dies whatever a Spider Pig does. Spider Pig, shows up, in a cool cameo. We are glad, so so glad. Spider Pig is our hero. In all, I give this 6.8 out of 10.