Hercules (1960's cartoon) First Hercules Cartoon!
This appears to be the first Hercules cartoon, in which a young Herc (note different voice and hairstyle) is given the power ring by Zeus, and meets his silly blonde girlfriend Helena.
High point of the episode for me was the appearance of the dragon, who, when he attacks Hercules, goes into this kind of Jackie Gleason 'And away we go' vaudeville step. Fairly hilarious.
On the bright side, no Newton as of yet. The redundant asswipe would not show up until later episodes.