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How Many Minutes of Commercials Are Shown in an Average TV Hour? The Number Has Been Steadily Climbing LA Times

The number of commercials shown in a typical hour of television has increased steadily over the past five years, the Los Angeles Times’ Company Town reports, citing a study from Nielsen.

Broadcast networks averaged 13 minutes and 25 seconds of commercial time per hour in 2009, which grew to 14 minutes and 15 seconds in 2013, the story reports.

On cable TV, the growth has been even more significant, the report notes. Last year, the average was 15 minutes and 38 seconds, up from 14 minutes and 27 seconds in 2009, according to the report.

And more commercials are being jammed into that growing ad hole, with the number of 30-second spots decreasing while the number of 15-second ads rises.

"In 2009, 30-second spots accounted for 62% of all ads on television; 15-second spots were just 35%. In 2013, the percentage of 30-second ads fell to 53% and 15-second spots increased to 44%," the story reports. "The increased number of commercials has translated to more money flowing into television. According to Nielsen, advertisers spent $78 billion on TV commercials in 2013, compared to $64 billion in 2009."