Regarding the posts on latter day Looney Tunes, Popeye, and Tom & Jerry cartoons, and how inferior they were to the originals.
The limited animation used on TV cartoon shows was pioneered in the 50s by studios like UPA and Hanna-Barbera. But the Looney Tunes cartoons in the 50s and even the 60s were originally made for theatrical release, and most of them were fully animated.
The fact is - most cartoon producers could not make money given what the networks were willing to pay, and what money the sponsors would provide - unless they cut costs on animation. My father worked at Jay Ward. Though Bullwinkle, Dudley Doright and all the others have been considered classics for years - it was for the clever script writing. The fact is - most of the Jay Ward shows were animated poorly by Gamma Productions in Mexico. Limited animation aside - Ward wasn't getting enough money even to use his own team of good American animators. On the budget he was allowed, he could only afford to "out-source" the animation, as we say nowadays.
Even with all that cost-cutting, Jay Ward Productions lost money producing shows until well after they were in rerun syndication. Fortunately for Ward, he was independently wealthy from real estate investments, and could afford to lose money on the studio. Many - if not most of the independent animation studios in those days went out of business after a few years. Hanna-Barbera's success was the exception to the rule.