<Tr> <Th_colspan="2"> External links </Th> </Tr> <Tr> <Th> Website </Th> <Td> www.themoreyouknow.com </Td> </Tr> <P> The More You Know is a series of public service announcements (PSAs) broadcast on the NBC family of channels in the United States and other locations, featuring educational messages . These PSAs are broadcast regularly during NBC's programming in primetime, late night, and Saturday morning . </P> <P> The spots feature personalities from various NBC shows . Tom Brokaw was the first person to do a The More You Know spot; it aired on NBC in September 1989 (these replaced the One to Grow On PSAs that were used from 1983 to 1989). </P>

Where does the more you know come from