From August of 2009.
Maddow Appearance Boosts 'Meet the Press' Ratings to Highest Point Since April HuffPo
Last Sunday's guest appearance by MSNBC's Rachel Maddow resulted a major boost in the ratings for NBC's "Meet the Press" according to Huffington Post.
The show reached 3.3 million total viewers, the highest number since April 19, when it featured Larry Summers and averaged 3,439,000 total viewers.
Maddow took part in a panel discussion with with former House Majority Leader Rep. Dick Armey, R-Texas, Sen. Tom Coburn, R-Okla., and former Senate Majority Leader Tom Daschle, D-S.D., about the healthcare debate.
http://www.tvweek.com/blogs/tvbizwire/2009/08/maddow-appearance-boosts-meet.php