Not O Toole
Anette o Toole was always very appealing to me. But not in this movie. She didn't come across as Wynette.
shareI found a cool clip of the CBS premiere date on YT(very beginning of the video):
https://www.youtube.com/watch?v=QpsyA2rJDio&list=LLtlbm8LAyhxP6Ojhl65yvbQ&index=11