Letterman's 'Late Show' gets a boost from Palin flap AP
June 18, 2009 NEW YORK -- David Letterman's squabble with Alaska Gov. Sarah Palin gave his "Late Show" a ratings boost last week, but new NBC rival Conan O'Brien retains the upper hand after two weeks as "Tonight Show" host. Overall for the week of June 8, "Tonight" won in total viewers as well as among such demographic...