Sid & Marty Krofft's 2nd series for NBC was The Bugaloos, which bowed in 1970, and was, like H. R. Pufnstuf before it, co-produced by TV vet Si Rose (ex-McHale's Navy), whom I believe left the Kroffts' employ not long after.
The Bugaloos were not only the guardians of a magical forest, but also a pop group, as there would be musical numbers included with virtually every episode. Billy Barty began his long association with the Kroffts, landing a featured role as Sparky, the firefly, who eventually becomes the band's mascot-sidekick. Martha Raye, however, was featured as Benita Bizarre, a vain veteran performer who was jealous and envious of the younger musicians.
Unfortunately, the series merited only 1 season's worth of episodes, and, after a brief rerun cycle in syndication in the 80's, hasn't been seen in years.
KingGhidorah38 uploaded the series premiere, "Firefly, Light My Fire":
Norman Gimbel & Charles Fox, who composed the music, would later work on Garry Marshall's family of sitcoms for Paramount & ABC. Like, whodathunk?