Undercover Boss has averaged 18.74 million total viewers and a 7.1/17 rating/share in the Adults 18-49 demographic over its first four episodes -- which includes its post-Super Bowl premiere, which averaged 38.7 million total viewers and attracted the third largest post-Super Bowl audience ever.
But Undercover Boss has continued to do well since its Super Bowl-fueled debut, with last week's fourth episode still averaging more than 15 million viewers -- more than The Amazing Race or Survivor, the other two reality series CBS aired last week.
Given the strong ratings, Undercover Boss currently ranks as the No. 1 new series of the 2009-2010 television season.
"We are thrilled with the overwhelming response to the series and how audiences seem to connect to it on several levels," said CBS programming executive Jennifer Bresnan.
"The wish fulfillment of seeing the top boss perform jobs of the rank and file is universal, and the employees' stories discovered at each company are often relatable and inspirational."
Each Undercover Boss episode follows corporate executives working in disguise at low-level jobs in their own company to find out what their employees really think of them.
Since production of the show's first season was complete before it premiered, suspicious employees weren't really a problem -- however it will be for the second season.
"That will be something that we have to address," executive producer Stephen Lambert told Salt Lake City's Desert News in a report published last week.
"We've got a number of ideas how we're going to deal with that, which aren't necessarily ideas that I think are good for me to articulate now."
In addition, Lambert said he thinks Undercover Boss has staying power beyond the second season that it was recently renewed for.
"I think the principle of the boss who doesn't really know what it's like on the front line is a principle that is strong and one that we can build a longtime series on. Quite how we execute it as the series develops is something, obviously, we will do in discussion with CBS," he told Desert News.
"But I think the fundamental idea of experiencing what your workers do is something that has a long future."