In 1965 Ed Vane took over as head of daytime programming at ABC. Saturday mornings were dominated by CBS- Vane wanted to change that. He felt the best bet was a Beatles cartoon. Working with Al Brodax at King Features, a deal was made for 26 shows with 2 cartoons per show at a budget of $32,000/show (cheap for 1965). And Brodax had just 5 months before the premiere. Result was a rush job with all the animation outsourced outside the U. S. Results were as you would expect-simple animation with lots of cycles repeating. Still, "The Beatles" was the top rated cartoon for the year, and ABC came in #1 on Saturday mornings. That shocked CBS into opening its wallet and spending millions on a complete revamp of their lineup.
13 more Beatles cartoons were made over the next two seasons- since they're not as rushed the quality is noticeably better. Al Brodax went on to produce the Yellow Submarine film.