Hosts Joan Lunden and Ben Vereen; on-street interviewer Regis Philbin. Regis Philbin previews The Living Seas at EPCOT Center and Ben Vereen previews Captain EO. Ben Vereen sings Go Tell It on the Mountain. Special holiday messages from US President Ronald Reagan, UK Prime Minister Margaret Thatcher and Canadian Prime Minister Brian Mulroney, as well as from World Showcase Cast Members from France, China, Mexico, Italy, Germany, Morocco and Japan.