dr. yvonne sanders-butler. also tonight, actor daryl "chill" mitchell and former nfl great michael strahan is here. the two have teamed up for a family comedy called "brothers" that premieres friday night on fox. more with a look at childhood obesity and the cast of "brothers" coming up right now. >> there are so many things that wal-mart is look forward to doing, like helping people live better but mostly we're looking forward to helping build stronger communities and relationships because with your help, the best is yet to come. >> nationwide insurance proudly supports tavis smiley. tavis and nationwide insurance, working to improve financial literacy and the economic empowerment that comes with it. >> ♪ nationwide is on your side ♪ >> and by contributions to your pbs station from viewers like you. thank you. tavis: as we continue our look at the issue of childhood obesity tonight, i wanted to highlight an example of what just one person can do to make a difference in our communities. dr. yvonne sanders-butle