The other reviewers are right that "Hoppity Hooper" has been largely underrated, but not without reason. When it comes to remembering the work of Jay Ward, this particular show is little recognized today, mostly due to the few years it ran. "Rocky and Bullwinkle" had a total of five seasons, had a large cast of recurring characters, creative plots each time, and long-spanning story arcs sometimes lasting more than ten half-hour shows. Albeit poorly and cheaply animated (understandable since most sixties cartoons were every bit as bad) it lived to please both kinds of audiences: the adults could see it for its witty and sophisticated puns, the kids could watch it for its funny character designs and lovely colors. It is no wonder then, that because of all the lovable characters and witty jokes that R&B is a remembered classic.
"Hoppity Hooper" had lots of potential. It makes me sad to think how little of it was used. The show ran for about two seasons and is hugely overshadowed by its longer-running predecessor. Furthermore, each story-line feels cramped and little-used since all story arcs run for only two half-hour shows ("Jet Fuel Formula" from R&B had a total of twenty) and all of the various adventures Hoppity and his friends go through could have been more filled with gags. The characters are all great: Filmore makes a good Bullwinkle while Waldo's brilliant ideas make his person a success, but Hoppity himself is uninteresting and lacking in any real noticeable traits apart from being the smartest of all three. The stories are creative and fun, but as stated above are not exercised like those of "Rocky and Bullwinkle".
Jay Ward and his company unmistakably stumbled upon some excellent characters and ideas, but they didn't seem to realize it. "Hoppity Hooper" is cheaply made, conformed to a very tight space to where it's only decent entertainment, and little effort appears to have been put into it. It's sad, because the premise could have been just as good as "Rocky and Bullwinkle", but with four-part stories, great ideas left un-exercised, and great characters unused to their full extent, the show is mainly one for younger kids and serves as little more than decent entertainment. I like what I see, and I think it's sad that the studio never realized all the things they could have done with it.