Ianniello has received an extension with a contract now running through Dec. 31. Vanity Fair reported earlier this month that CBS has been having trouble finding Les Moonves' successor. A new CEO was supposed to be named by the end of March. Ianniello was CBS COO when he was tapped to succeedMoonves on an interim basis, but he wasn't seriously considered for the permanent CEO role due to his close ties to his successor. According to The Hollywood Reporter, CBS' move today "makes it all the more likely that Ianniello would be named the permanent CEO when his extended contract runs out on Dec. 31."