According to Parrot Analytics (an organization that gauges the popularity of shows based on social media, fan ratings, and piracy) the most popular show on HBO Max at launch was Looney Tunes Cartoons. Specifically, this is the latest iteration of Looney Tunes, with the characters and plot lines updated to reflect a more modern era. The drawing style is new as well, and it appears the show got some real attention from HBO Max subscribers.