“CBS This Morning” co-anchor Gayle King made a guest appearance as herself on the NBC sitcom “30 Rock” last night. Liz Lemon (played by Tina Fey) was honored as one of the “80 under 80″ by a New York women’s media organization. King was also an attendee, and had some sage advice for Lemon about the machinations of “best friends.”

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As it happens, the moment may have been based on a real-life event. In 2010, both Fey and King were presented with “Matrix Awards,” by the organization New York Women in Communications. King’s best friend, Oprah Winfrey, helped honor her.