When are new episodes added? February 19, 2019 19:50 Updated New episodes are available on CartoonNetwork.com and the Cartoon Network app the day after they air on Cartoon Network. Related articles How long are episodes available? Can I watch the Cartoon Network app on my mobile device or TV? Where are all the classic cartoons like Scooby-Doo, Looney Tunes, and Tom and Jerry? Why am I being asked to log in? What if I am not receiving Closed Captions on my TV?