Betty White Makes Guinness Book of World Records

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(CNN) It might seem like Betty White has been on TV longer than any other woman.

Her career dates back to 1939 and includes big hits like “The Golden Girls” and “The Mary Tyler Moore Show.”

But now it’s official!

The Guinness Book of World Records has certified that the 91-year-old actress and comedian has earned the record as the longest TV career for a female entertainer.

White is still acting after 74 years in show business.

She still has a TV show with a starring role in TV Land’s “Hot in Cleveland.”