I don't think either TW or Disney offer anything to local stations anymore (not sure Disney ever did).
Bugs Bunny and the other WB cartoons (mostly post-WW2, with only a few Leon Schlesinger-era titles here and there) still occupy several hours a day on Boomerang. Along with Tom & Jerry and Scooby Doo, those three are about 22 of 24 hours per day on that channel. The Flintstones has also completely disappeared from their air.
I doubt you'll ever see any classic cartoons on OTA stations anymore. TW, Disney, and Viacom/Paramount own most of them, and I think they're more interested in DVD sales than broadcasting nowadays.
DVD Sales and cartoons? That sounds like a decade ago but if somebody wants to see cartoons that meets the median age that Sinclair is aiming. Wouldn't they be on apps or in venues like Google Play Store or Apple app store and its on demand.
But it will be interesting how the ratings will be when Sinclair air the Kids Click lineup though.
https://play.google.com/store/apps/...uster_apps?clp=ggEICgZEaXNuZXk=:S:ANO1ljL-iDI
https://play.google.com/store/search?q=Disney&c=movies
https://play.google.com/store/search?q=looney tunes&c=movies