Ever year, CBS helpfully provides millions of at-work viewers with a Boss Button that will show a fake spreadsheet if a nosy supervisor is looking over their shoulder. There were a record 2.5 million-plus clicks on the button in 2008. This year, it will be brought to you by its first official sponsor: Comcast.

Given the millions of jobs lost during the recession, Jason Kint, general manager of CBSSports.com, wouldn't be surprised if some worried supervisors reach for the button themselves.

"I bet you a lot of bosses will click it too," Kint says.

Kint's asked frequently if killjoy employers block the free service. Some do that on their own. But he says no companies have ever inquired with CBS on how to block it (although there's information about it on the March Madness on Demand website). That could change during the worst economic climate in decades.

"Even in a tough market we can all use a little break from the grind of the current economy," Kint says. "I'm hopeful that will continue. And people will look at March Madness on Demand as a positive."

Kint estimates the number of unique viewers in 2009 will rise 50% to 7.2 million. In 2008, the number of unique viewers grew 164% to 4.8 million. The total hours of live video/audio consumed grew 81% last year to 5 million hours.

Does March Madness on Demand cannibalize CBS' TV audiences? The network says no. Not surprisingly, the service gets its biggest audience for the Thursday-Friday first round games when many viewers are at work. The numbers then fall steadily while CBS' TV audiences take off.