Youtube user Felipe Jimenez has compiled all 26 episodes into this single video. It’s a great discovery, although the video quality suffers from occasional glitching and there are no English subtitles. That’s okay, since you’re watching a lot of goofy slapstick cartoon gags that anyone can understand.
Beyond that, some of the animal characters from this series appeared in Animal Treasure Island, and the fox character also appeared as the villain in the third Puss in Boots movie from 1976. Finally, we can see that the junkyard and safe that appears in the opening was later riffed by Hayao Miyazaki in the final episode of Lupin the 3rd: Series One in 1972. Small world.
As always, be sure to watch this show before Toei gets wise and has it removed.