Diane Brewster (Miss Canfield) makes the final on-screen appearance of her career in her fourth and last episode of Still the Beaver/The New Leave it to Beaver, and Poltergeist child star Heather O'Rourke ("They're he-e-e-r-r-e!") makes her next-to-last on-screen appearance of her career playing the manipulative new student and spoiled daughter of rich parents who uses her knowledge of Wally's daughter Kelly (Kaleena Kiff) plagiarizing a poem to blackmail her into pretending to be her best friend in this 41st episode of the Leave it to Beaver revival series that debuted Dec. 15, 1986.
Bad Poetry is the 15th episode under the new title of The New Leave it to Beaver on Superstation WTBS and featuring most of the original cast of Leave it to Beaver, including Jerry Mathers and Tony Dow - the first season of 26 commercial-free episodes when the series was called Still the Beaver was on The Disney Channel from November 1984 - December 1985.
These videos are taken from my Betamax VCR personal recordings of the show when it originally aired. You can find the original Still the Beaver CBS TV reunion movie and all 26 episodes of the 1984-85 Still the Beaver TV series here at my KZfaq channel, as well as all prior to this from The New Leave it to Beaver, compilation videos, and more than a hundred other video clips of Leave it to Beaver cast members in other TV shows and movies... / shettrick