December 12, 1977 12:00 PM

ABC (9 p.m. ET)

Karen and Richard lend their impeccably modulated tones to the hall-decking, abetted, with varying degrees of harmony, by puppeteer Burr Tillstrom and his prehistoric Muppets, Kukla and Ollie, Harvey Korman and Family’s Kristy McNichol.

SATURDAY, DECEMBER 10

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