The eighth episode of season seven, guest-hosted by former cast member Bill Murray, was filled with holiday cheer, including appearances by Santa Claus and a Christmas medley sung by the show's cast alongside Yale a cappella group the Whiffenpoofs. But during the show-closing goodbye, Murray shared some decidedly serious news with the studio and viewing audience -- that the USSR had invaded Poland, including the arrest of the Lech Walesa's Polish pro-democracy group Solidarity. "I guess that means this is World War III," Murray noted. "Our hearts should be with, and are with, the good people of Poland. God bless them." Cast members Christine Ebersole and Robin Duke were visibly shaken and in tears.
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