you think it never happens, but it does! Sometimes. Supernatural and Smallville celebrated via CW press release:
THE CW SCORES STRONG THURSDAY AS "SMALLVILLE" GROWS AND "SUPERNATURAL" HITS SEASON HIGHS
The CW Delivers Best Thursday of Season in Young Women and
Second Best Thursday in Adults 18-49
SUPERNATURAL Scores Season Highs with Women and
Best Since Its Season Premiere in Adults and Viewers
SMALLVILLE Builds Week to Week in Key Demos
January 30, 2009 (Burbank, CA) - Against a special Thursday "American Idol" and an original episode of "CSI," The CW scored one of its best Thursdays of the season, matching the season's best Thursday with women 18-34 (1.5/4) and matching the second best among adults 18-49 (1.7/4), according to Live Plus Same Day Nielsen ratings for Thursday, January 29, 2009. The CW registered its largest Thursday audience (3.9mil) since 10/30/08.
Facing an original "CSI," SUPERNATURAL climbed to season highs in women 18-34 (1.7/4) and women 18-49 (1.7/4), and posted its largest audience (3.6 million), and best adults 18-34 (1.5/4) and adults 18-49 (1.6/4) ratings since its season premiere.
SMALLVILLE built over last week's original telecast by 7% in adults 18-34 (1.5/4), 40% in women 18-34 (1.4/4), 6% in adults 18-49 (1.7/5) and 8% in total viewers (4.2mil).
Compared to the same night a year ago (1/31/08), The CW's Thursday improved 7% in adults 18-34 (1.5/4), 21% in adults 18-49 (1.7/5) and 12% in total viewers (3.9mil).