Notable TV exits through the years

POSTED: 10:42 AM PDT April 6, 2012    UPDATED: 8:11 AM PDT August 28, 2014 
 Diane Sawyer

Diane Sawyer officially stepped down as anchor of ABC's "World News" last night, but will focus on primetime specials and big interviews for the network. Take a look at other high-profile personalities and their exits from particular shows or TV altogether.