Actress Mary Tyler Moore, whose 1970s TV show helped usher in a new era for women on television, died Wednesday, January 25, her longtime representative Mara Buxbaum said. Moore was 80 years old. "The Mary Tyler Moore Show" debuted in 1970 and starred the actress as Mary Richards, a single career woman at a Minneapolis TV station. The series was hailed as the first modern woman's sitcom. Bettmann/Getty Images

Moore came to fame in "The Dick Van Dyke Show," a sitcom that ran from 1961-1966. She played Laura Petrie, the wife of Van Dyke's character. CBS/Getty Images

Moore poses for a portrait in 1964. She began her career as a dancer. CBS/Getty Images

Moore and Van Dyke hold Emmy Awards in 1966. Moore won two Emmys for "The Dick Van Dyke Show" and four for "The Mary Tyler Moore Show." Bettmann/Getty Images

Moore and Julie Andrews appear in a scene from the 1967 film "Thoroughly Modern Millie." Courtesy Everett Collection

Moore and her second husband, Grant Tinker, attend the premiere of "Thoroughly Modern Millie." The two started the television production company MTM Enterprises, which produced "The Mary Tyler Moore Show" as well as such acclaimed series as "The Bob Newhart Show," "Hill Street Blues" and "St. Elsewhere." Bettmann/Getty Images

Moore puts her arm around her son, Richard, at a Teach Foundation benefit in 1968. Richard, Moore's only child, died in 1980 after he accidentally shot himself while handling a shotgun. Frank Edwards/Getty Images

Moore, Robert Wagner and Barbara Rhoades, right, appear in the 1968 film "Don't Just Stand There!" Courtesy Everett Collection

Moore poses for a photo circa 1968. Hulton Archive/Getty Images

Moore plays opposite Elvis Presley in the 1969 movie "Change of Habit." Courtesy Everett Collection

The opening sequence of "The Mary Tyler Moore Show" -- with Moore twirling and tossing her cap -- became iconic. Courtesy Everett Collection

Moore plays Mary Richards on "The Mary Tyler Moore Show" in 1971. CBS/Getty Images

Moore, in the pink shirt, poses with cast members of "The Mary Tyler Moore Show" in 1974. Clockwise from Moore are Gavin MacLeod, Betty White, Ed Asner, Ted Knight and Georgia Engel. The show ended in 1977 but spurred several spinoffs, including "Rhoda" and "The Lou Grant Show." John G. Zimmerman Archive/Courtesy Everett Collection

Moore dances in "Mary's Incredible Dream," a CBS special in 1975. CBS/Getty Images

"Mary will be remembered as a fearless visionary who turned the world on with her smile," said her longtime representative Mara Buxbaum. Francesco Scavullo/Conde Nast Collection/Getty Images

Moore visits Moscow's Red Square in 1976. Ralph Crane/The LIFE Images Collection/Getty Images

Moore accepts a People's Choice Award in 1977. CBS/Getty Images

Moore acts with Timothy Hutton in 1980's "Ordinary People." For her role in the film, she was nominated for a best actress Oscar. Courtesy Everett Collection

Moore holds up the Golden Globe Award she won for "Ordinary People." Ron Galella/WireImage/Getty Images

Moore and Dudley Moore, no relation, appear in the 1982 film "Six Weeks." ©Universal/Courtesy Everett Collection

Moore and her third husband, Robert Levine, attend the New York premiere of "The English Patient" in 1996. She was married to Levine when she died. Ron Galella/WireImage/Getty Images

Moore re-enacts her famous hat toss afer a bronze statue of her was unveiled in 2002. The statue was unveiled in Minneapolis, where "The Mary Tyler Moore Show" takes place. DAWN VILLELLA/AP

Moore receives the David Angell Humanitarian Award from Larry King in 2002. The award was established by the American Screenwriters Association. Moore suffered from Type 1 diabetes and was chairwoman of the Juvenile Diabetes Research Foundation. Kevin Winter/Getty Images

Moore poses at her home in Greenwich, Connecticut in 2011. Fred R. Conrad/The New York Times/Redux

Moore and Van Dyke share a moment on stage at the 2012 Screen Actors Guild Awards. John Shearer/WireImage/Getty Images