<P> The spots feature personalities from various NBC shows, as well as other notable figures such as U.S. presidents . Tom Brokaw was the first person to do a The More You Know spot; it aired on NBC in September 1989, succeeding the One to Grow On PSAs that were used from 1983 to 1989 . </P> <P> El Poder de Saber (The Power of Knowledge) is The More You Know's sister campaign on Telemundo . While the other U.S. broadcast networks have similar campaigns, namely CBS Cares and Disney - ABC's Be Inspired, The More You Know is likely the most well known . </P> <P> A senior executive at NBC, Dr. Rosalyn Weinman, developed the campaign and wrote most of the on - air PSAs after putting an advisory council together . She ran the campaign for 10 years . The first' comet trail' star logo was designed by Steve Bernstein and later produced by Paul Johnson on an animation stand using a slit scan technique at R / Greenberg Associates (now R / GA Digital Studios) in Manhattan . They were later updated using three - dimensional computer graphics . The More You Know program won a Peabody Award in 1993 for serving as "a model national public service campaign to provide a range of useful information to its vast television audience ." </P> <P> The campaign has featured a range of guests over the years including Amy Poehler, Joan Rivers, Jack McBrayer, Steve Harvey, Anjelica Huston, Questlove, and Jimmy Fallon . Several past U.S. presidents have also participated in the campaign, including Bill Clinton, George H.W. Bush, and Barack Obama, who encouraged parents to be more involved in their children's education, while First Lady Michelle Obama worked to promote the prevention of childhood obesity . </P>

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