Way back I bought Etta's record - Pushover on the Pye International label........I was hooked from then on.......fantastic voice.....she had her problems personally but the voice remained.
I'm looking for the same thing! Years ago, someone had a clip of it up on a MySpace page and I had found it after seeing the episode. Her performance of it, and the brief interview afterwards, are still in my memory. When she is improving during "Sugar . . . " I remember her singing "lost my mother, lost my father . . . " Such a moving performance. If you have turned up a copy, please let me know. I'm actively searching as well.