Eep, I'm showing my utter toon geekage here, but wasn't that from an episode of "The Aardvark and the Ant" (or is it the other way around)?... The one where Aardie buys the Instant Hole but it won't work for him... and in typical cartoon gag fashion, he's constantly falling into it...

"I hate you, instant hole!"

They should definitely release those and Pink Panther in DVD sets...