MSNBC Maddow Premiere: Post-Mortem By SteveK on Sep. 9, 2008 - 2:12 PM The Rachel Maddow Show premiered last night on MSNBC at 9pmET. Her first guest — the prior hour’s anchor, Keith Olbermann. Also on the show — her sometimes-foil on MSNBC political nights Pat Buchanan (for what lo ...