Ann George's final billing in the TV TIMES is for the (ATV) week of 17th-20th February 1976, (eps 2481-4), while the final mention of Amy in the "tease" is for episode 2482 with:
"Stan Harvey’s news for Amy Turtle leaves her astonished."
I've been helping someone who's writing a book on another series and for some reason it got onto Amy Turtle and he seems to think she ended up "homeless" before leaving.
"I remember being quite concerned when Amy Turtle left the motel and started living life on the streets with nowhere to live."Anyone else remember that?