Last week, the week of May 19, CBS News set a new record low in ratings, taking in a mere 5.33 million viewers. Its previous record low came the week of April 21, where it recorded 5.34 million viewers (the previous week's 5.39 million was also a new low, thus giving the CBS Evening News three weeks of record low ratings this spring).
NBC won both total viewers and the coveted 25-54 demographic. Full ratings appear below.
Ratings for Week of May 19, 2008 (via TVNewser)
Total Viewers: NBC: 8,100,000 / ABC: 7,840,000 / CBS: 5,330,000
25-54 demo: NBC: 2,570,000 / ABC: 2,360,000 / CBS: 1,540,000
25-54 rating: NBC: 2.1/9 / NBC: 1.9/8 / CBS: 1.2/5