THEY MEET AGAIN:

Three veteran actresses from the 1970-77 CBS sitcom “The Mary Tyler Moore Show” will compete against one another as best guest actress in a comedy series: Georgia Engel for “Everybody Loves Raymond,” Cloris Leachman, left, for “Malcolm in the Middle” and Betty White for “Yes, Dear.” Leachman has won seven Emmys; White has won four; Engel has been nominated three times and has never won. “MTM” won 29 Emmys during its seven seasons. Only “Frasier” has won more, 30 in its first nine seasons.