Betty White Ludden, known professionally as Betty White, is an American actress, comedienne, author, producer, radio host, singer, and television personality. In 2013, the Guinness World Records recognised White as having the longest television career for a female entertainer. To contemporary audiences, White is best known for her roles as Sue Ann Nivens on The Mary Tyler Moore Show and Rose Nylund on The Golden Girls. The Writers Guild of America has included both sitcoms in its list of the 101 Best Written TV Series Of All Time. Since the death of co-star Rue McClanahan in 2010, she is the only surviving Golden Girl. From 2010 to 2015, she starred as Elka Ostrovsky in the TV Land sitcom Hot in Cleveland, for which she has won two consecutive Screen Actors Guild Awards, and she presented the practical-joke show Betty White's Off Their Rockers, which resulted in three consecutive Emmy nominations. She became the oldest person to guest-host Saturday Night Live, a performance which earned her a Primetime Emmy award.