Valerie Harper, the Emmy-winning sitcom star whose role as the somewhat neurotic “Rhoda Morgenstern” made her one of television’s biggest and most beloved stars in the 1970s, died today. She was 80 and had been suffering from various cancers for a number of years. She had been in a coma for a while before succumbing today, her family told KABC-TV entertainment reporter George Pennacchio. The veteran TV and stage actress was best known for playing sidekick Rhoda Morgenstern on The Mary Tyler Moore Show, then taking the character into her own popular spinoff, Rhoda. She also starred in the 1980s...