If it's not on Phil's list, I'm sure it was not shown on the CCFF. He spent weeks going through every single TV Guide of the time, and compiled his list based on the published television listings.
"A Girl Named Sooner" wasn't a CCFF film, but a NBC television movie broadcast in 1975. To my knowledge, it has never been released commercially, but you can get copies recorded off air from ioffer.com, http://www.raremoviesworldwide.com, and onlyclassicmovies.com