KATIE - 4/8/13 - A KATIE Exclusive: Mary Tyler Moore, Valerie Harper & Betty White Back Together - Katie Couric visits the set of "Hot in Cleveland" for an exclusive reunion with the cast members of "The Mary Tyler Moore Show," which made TV history. KATIE airs on MONDAY, APRIL 8, distributed by Disney-Walt Disney Television via Getty Images Domestic Television. (Photo by Rick Rowell/Walt Disney Television via Getty Images) BETTY WHITE, CLORIS LEACHMAN, MARY TYLER MOORE, KATIE COURIC, GEORGIA ENGEL, VALERIE HARPER
