Actually, The Heathcliff And Dingbat Show was initially a formulaic Ruby-Spears series (although I can understand the confusion, as Joe and Ken used to work for Bill and Joe - getting "Created by" credit on Jabberjaw and DynoMutt, unusual for a cartoon back then - before setting up their own very similar shop). Heathcliff later went down the animated evolutionary chain when his second series was produced by DIC (with another supporting act, this time Cats & Co); at least Mel Blanc stayed on board for voice duties unlike Bill & Ted's Excellent Adventures losing the original voices* when it changed from Hanna-Barbera to DIC, though it didn't make the 'toon any better.
*Understandably, considering the H-B version had Keanu Reeves, Alex Winter and George Carlin reprising their roles.
Totally agree about PREMIUM RUSH (in fact, the film was set for release at the beginning of this year, but ultimately dumped on last week). Shame that Sony threw all its promotion muscle into the okay-but-underwhelming TOTAL RECALL, but hardly bothered with RUSH.