"Toy Story 4" star Tim Allen on comedy and tragedy

Comedian Tim Allen, star of the hit sitcom "Home improvement" and the voice of Buzz Lightyear in the "Toy Story" animated films, talks with correspondent Tracy Smith about the difficult past (including the loss of his father to a drunk driver) that led to a stellar standup career; the struggles with addiction problems that almost ended it all; and the happiness of being sober for more than 20 years. Subscribe to the "CBS Sunday Morning" Channel HERE: bit.ly/20gXwJT Get more of "CBS Sunday Morning" HERE: cbsn.ws/1PlMmAz Follow "CBS Sunday Morning" on Instagram HERE: bit.ly/23XunIh Like "CBS Sunday Morning" on Facebook HERE: on.fb.me/1UUe0pY Follow "CBS Sunday Morning" on Twitter HERE: bit.ly/1RquoQb Follow "CBS Sunday Morning" on Google+ HERE: bit.ly/1O3jk4x Get the latest news and best in original reporting from CBS News delivered to your inbox. Subscribe to newsletters HERE: cbsn.ws/1RqHw7T Get your news on the go! Download CBS News mobile apps HERE: cbsn.ws/1Xb1WC8 Get new episodes of shows you love across devices the next day, stream local news live, and watch full seasons of CBS fan favorites anytime, anywhere with CBS All Access. Try it free! bit.ly/1OQA29B --- "CBS Sunday Morning" features stories on the arts, music, nature, entertainment, sports, history, science, Americana and highlights unique human accomplishments and achievements. Check local listings for CBS Sunday Morning broadcast times.

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