>> never. >> osgood: larry hagman remembers who shot j.r. and later?istics ♪ ♪ when the parts for the line ♪ ♪ come precisely on time ♪ that's logistics ♪ ♪ a continuous link, that is always in sync ♪ ♪ that's logistics ♪ ♪ carbon footprint reduced, bottom line gets a boost ♪ ♪ that's logistics ♪ ♪ with new ways to compete ♪ there'll be cheers on wall street, that's logistics ♪ ♪ when technology knows ♪ right where everything goes, that's logistics ♪ ♪ bells will ring, ring a ding ♪ ♪ ring a ding, ring a ding, that's logistics ♪ ♪ there will be no more stress ♪ ♪ cause you've called ups, that's logistics ♪ >> j.r.? >> don't come any closer or i'll call the police if you come any closer. >> it's a special edition of sunday morning. >> j.r.? >> here again is charles osgood. >> osgood: virtually the entire country was watching dallas 30 years ago tonight to find out who shot j.r.? he was played by larry hagman, the show's indispensable main course. he made ratings history. katie couric serves up our sunday profile. >> couric: there's nothing like a good t