The answer can be found at the bottom of the list.
4/20/10
4/19/10
4/16/10
4/15/10
4/14/10
4/13/10
4/12/10
4/8/10
4/7/10
4/6/10
4/5/10
3/30/10
3/24/10
3/19/10
3/16/10
3/10/10
3/9/10
3/5/10
3/4/10
3/3/10
3/2/10
2/26/10
2/19/10
2/12/10
2/11/10
2/10/10
2/8/10
2/5/10
2/4/10
2/1/10
1/29/10
1/28/10
1/26/10
1/11/10
1/8/10
1/7/10
1/6/10
1/5/10
1/4/10
12/29/09
12/28/09
2/24/10
2/23/10
2/22/10
2/18/10
2/17/10
2/16/10
2/15/10
2/3/10
2/2/10
These are the recent nights on which CNN has finished 4th or worse in the cable news ratings. According to TVbyTheNumbers.com, the latest Nielsen TV Ratings are worse than ever for CNN.

CNN has finished 4th or worse during 50 nights in weekday primetime among cable news networks in the advertiser target adults 25-54 demo. That’s 61% of the weekday nights so far (the ratings “year” began 12/28/09). On nine of the weekday nights, CNN finished fifth (behind Fox News, MSNBC, CNBC and Headline News).
Nielsen doesn’t like us posting long lists with their ratings, but I don’t see how they can quarrel with a long list of dates. These are the dates on which CNN has finished fourth or fifth in the weekday primetime A25-54 demo.
Damn list is almost as long as the list of Larry King’s wives.
Source: TVbyTheNumbers.com