Television News Report: CBS and news anchor Katie Couric heading for a split 04/09/2008 Lackluster ratings may cause news U.S. anchor Katie Couric to leave "CBS Evening News" before her contract expires in 2011, The Wall Street Journal reported. Read More RELATED NEWS Jimmy Fallon's 'The Tonight Show' dropping to only four nights a weekAshley Tisdale announces birth of her second childSelena Gomez is a billionaire TAGS: Katie Couric Dan Rather CBS Evening News Today