First off, I don't know what version of Inch High the previous reviewer saw, but it wasn't the one I originally saw IN the 70s. Inch remained an inch high throughout the series and could NOT grow back, period. That was the whole gimmick of the show.
Despite his size, he always got the job done...with the help of his lovely and resourceful niece, Laurie, who called him "Uncle Inch" and Gator, Inch's muscled-bound golly gee-whiz bumkin assistant who referred to him as "Mr. Inch Sir." Gator also drove the team's vehicle, a sleek hovercraft similar in design to the Blue Falcon's Falconcar from "Dynomutt." The group also had a lumbering dog that occasionally aided Inch.
Inch was voiced by Lennie Weinrib, not Alan Oppenheimer. John Stephenson was hilarious as Inch's short-fused superior, Mr. Finkerton. The character was played like Cosmo Spacely from The Jetsons. Instead of firing Inch, Finkerton always told Inch to "Get out!" Most bosses would probably coddle Inch because of his size. Not Finkerton, which is why he was funny with that "about-to-sneeze" pitch in his voice when he spoke.
Despite it's comedic premise, this was a surprisingly straight and laid-back show compared to the other mystery toons. There weren't song-n-dance monster chases or unveilings. Laurie wasn't danger-prone, but was quite capable. If you tire of Scooby antics, then Inch High, Private Eye may provide an adequate diversion.