The Hillbilly Bears were one of the backup features for Atom Ant, but it's clear these shorts were a funny animal knockoff of The Beverly Hillbillies, as if the Clampetts had never left the Ozark mountains.
Most of the humor centered on mumblin', bumblin' Paw Rugg (Henry Corden), perhaps the most unintelligible patriarch in television history. In "Leaky Creek", Maw (Jean VanderPyl, The Flintstones) has to drag Paw to the creek to take a bath, but a beaver has apparently staked out the area for himself. Uploaded by Superclassictoons:
More than a decade later, VanderPyl & Corden would team again, as Corden succeeded Alan Reed as the voice of Fred Flintstone. Unfortunately, after a rerun cycle as part of the Banana Splits & Friends syndicated package, the Rugg family hasn't been considered for a revival, and you'd think the lunatics at Cartoon Network would've given them at least a look. Of course, when you consider the idiots running that network have zero interest in doing anything right.........