What are the release dates for Scooby-Doo and Scrappy-Doo - 1979 Bull Fright Stow-Aways Long John Scrappy 2-4?

The air dates, not release dates, for Scooby-Doo and Scrappy-Doo - 1979 Bull Fright Stow-Aways Long John Scrappy 2-4 are:

Bull Fright - October 13, 1979

Stow-Aways - October 20, 1979