Katie Couric has signed a multi-year, multi-platform agreement with ABC Television group, the company announced today. Under the deal, Couric will host and produce a now-untitled nationally syndicated talk show that will premiere in September 2012, and will also join the ABC News team. Additionally, Couric will reunite with Jeff Zucker,  the former NBC-Universal topper  Katie Couric to host talk show under Disney ABC deal