The jingle that blighted my tender youth was the Bonnie Dog Food commercial, an inane little earworm of a ditty which started out:

Better buy Bonnie for your bow-wow [arf, arf]

I cannot believe I've forgotten the rest of it! After having that sung at me throughout school, I thought it would be etched on the brain cells forever. Anybody remember the other lines?

(And: Was the Bonnie Dog Food they sold in California made of kangaroo meat like its Oz cousins?)