I absolutely loved this cartoon when I was four years old! In fact, it wasn't till several years later that I found out there had been a series with live actors that it was based on! Okay, the standard Filmation limited animation schtick was there, including the repeated footage and gags (I for one liked Brennan falling into the rain barrel!), but that was to be expected on Saturday mornings in the '70s. Here's an exchange I still remember thirty years on! Tell me this isn't comedy!: Mrs. Brown presents Uncle Martin with a very oddly-shaped coconut pie: Uncle Martin: "What's that lump in the middle?" Mrs. Brown: "That's the coconut!" Of course, the Ray Walston/Bill Bixby series was the classic, but of the animated shows based on prime time sitcoms (of which there were an embarrassing number in the 1970s and 1980s), this is probably the best. At least to a four-year old! ;)