MSNBC Doc Block is a three-hour block of documentary programming airing Monday-Friday from 11 pm to 2 am Eastern time on MSNBC. It replaced Rita Cosby: Live & Direct and The Situation with Tucker Carlson. The Situation was renamed Tucker and was moved to the slots that were vacated by The Abrams Report before it too was cancelled. During the months preceding the 2008 US Presidential election, the Doc Block was relegated to weekend airings and replaced on weeknights by repeats of The Rachel Maddow Show, Countdown with Keith Olbermann, and Race for the White House. It now only airs Fridays from midnight to 5 am, Saturdays from 2 pm to 5 am, and Sundays from 3 pm to 5 am.
