Thanks so much for writing and I'm glad you like my website. I hope you'll be a return visitor!
Yes, I definitely remember the show you asked about; in fact, the title of it is in the song lyrics you remembered: IT'S ABOUT TIME. Yep! A Sherwood Schwartz comedy production from 1966 about two astronauts who broke the time barrier and wound up in caveman times. You might remember Sherwood Schwartz as the creator and main driving force behind "Gilligan's Island". "It's About Time" used many of the props (the space capsule, the jungle sets) from Gilligan episodes.
"It's about Time" only lasted 26 episodes changing storylines midway to improve ratings. In early 1967 the cavemen traveled with the two astronauts aboard the space capsule ahead to 1966-era NY City. After the last episode of the season, the show vanished from the air and was never heard from again.
No one from F-Troop was featured, but one actor from "Car 54 Where Are You?"--Joe E. Brown---played the lead caveman, "Gronk". His wife Shadd was played by '50s comic legend Imogene Coca. The had a teenage son named Breer played by Pat Cardi. I remember character actor Mike Mazurki played the bodyguard of "Boss" the caveman leader, but couldn't remember anything else and drew a blank on the two astronauts. So I did a little research on the IMDB (http://www.imdb.com/title/tt0059997). The following is the complete cast list, including the shake-up after mid-season:
Full Cast and Crew for
"It's About Time" (1966)
Sherwood Schwartz creator
Sherwood Schwartz writer
Cast (in alphabetical order)
Frank Aletter .... Mac (1966-67)
Pat Cardi .... Breer
Imogene Coca .... Shadd
Alan DeWitt .... Manager of Apartment Block (1966-67)
Kathleen Freeman .... Mrs. Boss (1966-67)
Mary Grace .... Mlor (1966-1967)
Mike Mazurki .... Clon (1966-67)
Jack Mullaney .... Hector (1966-67)
Cliff Norton .... Boss
Joe E. Ross .... Gronk
Frank Wilcox .... Gen. Morley (1967)
Hope this helps! I was born in 1955 and my memories of this show are still pretty fresh, like yours...and like your situation, almost no one else I know remembers this show! (Hey, how many of us admit to watching the whole season run of "My Mother, The Car"?)
Glad to help and thanks again for writing!
Sincerely yours in fandom,
Nolan B. Canova
To send an email to Letters to the Editor write to: Crazedfanboy1@aol.com. Any emails sent to this address will be assumed intended for publication unless you specifically instruct me not to. I can and do respond privately, if that is your preference. Frequently, it's both ways.---Nolan