THE CLOCK STRIKES NOON AGAIN

I'm just wondering if anyone has any information about the following topic related to HIGH NOON.
In 1966,Four Star Productions produced a 30 minute tv pilot called THE CLOCK STRIKES NOON AGAIN,written by James Warner Bellah and derived from the movie. It starred Peter Fonda as Will Kane Jr. who returns to Hadleyville,twenty years later, to revenge the death of his father at the hands of Frank Miller Jr. Katy Jurado reprised her role as Helen Ramirez,also.
I don't think this was ever shown because in 1966 there were few antholgy shows on,at that time,which this type of program would have been telecast on and certainly none were 30 minutes long.Those went out with the 50s.No series resulted from this unsold pilot.
Would anyone know if this pilot was saved and is in the vaults of Four Star Productions current owner 20th Century Fox Television? I would like to think so but I'm thinking if it was,it possibly would have been resurrected to be used as an extra feature on some the dvds that have been released and it has not been that I know of.
So,again,my question is, "Does anyone know if this pilot is available for viewing anywhere?"