THE REPLACEMENTS

MARIE OSMOND replaces Faith Prince in Rodgers and Hammerstein's The King and I on Dec. 19 (producers deny reports that Arnold Schwarzenegger plans to costar as the King).... Alternating Scrooges Hal Linden and Roddy McDowall take flight (literally) in the Paramount's gaudy but giddy annual production of A Christmas Carol (TM).... Linda Blair turns other people's heads in Grease! .... Marilu Henner has stepped lively into the dance shoes of Ann Reinking as one of the merry murderesses of Kander and Ebb's Chicago (TC), costarring Bebe Neuwirth.... Having received a 10th-anniversary face-lift, Les Miserables (TC) is a warhorse at full gallop.... And the mostly new cast of Rent (TM) is worth checking out.