nba ratings TV Ratings: NBA conference semi finals, NASCAR dominateFast national ratings for Saturday, May 7.

Saturday’s prime-time viewing was mostly devoted to NBA basketball. ABC’s airing of the NBA Conference Semi-finals: Miami Heat vs. the Boston Celtics steadily grew in viewership throughout the evening, chased — not especially closely — by FOX’s live coverage of the NASCAR Showtime Southern 500.

ABC led the night in total viewers with 7 million and a 2.9 rating/10 share. Fox pulled in a tidy Saturday night audience as well, with 6.3 million watching and a 1.8 rating/6 share. The rest of the TV watching was a hodge-podge of crime procedurals and true crime programming — “NCIS,” “CSI: Miami,” “Law & Order: Special Victims Unit” and “48 Hours Mystery,” none of which did especially hopping business.

Saturday hour by hour:

8 p.m.

FOX: “NASCAR 2011” (6.5 million viewers, 1.8/7 households)
ABC: “NBA Conference Semi-finals” (5.7 million viewers, 2.2/8 households)
CBS: “NCIS” (5.2 million viewers, 0.7/2 households)
NBC: “Chase” (3.6 million viewers, 0.8/3 households)

18-49 leader: “NBA Conference Semi-finals”

9 p.m.

ABC: “NBA Conference Semi-finals” (7.3 million viewers, 2.9/10 households)
FOX: “NASCAR 2011” (6.1 million viewers, 1.8/6 households)
CBS: “CSI:Miami” (5.1 million viewers, 0.9/3 households)
NBC: “Law & Order: Los Angeles” (3.6 million viewers, 0.6/2 households)

18-49 leader: “NBA Conference Semi-finals”

10 p.m.

ABC: “NBA Conference Semi-finals” (8.1 million viewers, 3.5/11 households)
CBS: “48 Hours Mystery” (5.9 million viewers, 1.2/4 households)
NBC: “Law & Order: SVU” (4.9 million viewers, 1.2/4 households)

18-49 leader: “NBA Conference Semi-finals”

Ratings information includes live and same-day DVR viewing. All numbers are preliminary and subject to change. Source: The Nielsen Company.

More ratings at Zap2it: Daily, weekly and cable 

Posted by:Liz Kelly Nelson