"Up" is a news and opinion television program that airs weekends on MSNBC at 8:00 a.m. ET. It will end later in 2015 when Alex Wagner debuts a new weekend morning program. The show debuted September 17, 2011 as Up with Chris Hayes, and was hosted by Hayes until March 2013 when he left for All In with Chris Hayes, a new MSNBC weekday primetime program. Kornacki's first episode aired April 13, 2013. He left in October 2015 for MSNBC dayside.
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