A year-long celebration begins on New Year's Day with a special pre-show at the Rose Parade. On January 11, Art Linkletter and Bob Cummings-who were emcees at the 1955 opening ceremonies-will join Walt Disney Co. Chairman Michael Eisner for a rededication of Disneyland. Disneyland guests will find other exciting birthday festivities in the Park, with such highlights as "The Dream Machine," a year-long ...