 Emma Peels final episode, #7.1, "The Forget Me Knot", had already  been filmed prior to the announcement that Diana Rigg (qv) would  leave the series. After her announcement, fresh footage introducing  trainee spy Tara King was filmed and these scenes spliced in with  the existing footage shot for "The Forget Me Knot" in order to set  up Steeds replacement partner. As she had already left the series,  Rigg does not appear in this new footage 