Big Brother's controversial season was brought up during CBS' executive session with CBS Corp. president and CEO Leslie Moonves, taking over for CBS entertainment chief Nina Tassler.
"Big Brother, it's obviously is a social experiment. It always was," Moonves told reporters gathered Monday at Television Critics Association press tour. "Clearly that's what's happening this year."
Moonves voiced his distaste for some of the houseguests' derogatory comments, declaring: "I find some of the behavior absolutely appalling personally."
In response to the Internet and viewer uproar over, CBS inserted a disclaimer — the first time the long-running summer reality staple has used one — prior to its broadcasts.
"I think we've handled it properly," Moonves said. "It makes us uncomfortable."
The decision came after CBS faced increased pressure from viewers and subscribers of the uncensored 24-hour live feeds on CBS.com to address the cast's comments, which has cost two houseguests their jobs and an employer of another to distance itself from its employee.
CBS first aired the houseguests' racist remarks in the July 7 episode and has integrated the fallout in the house in its broadcasts since then.
Moonves, whose wife Julie Chen hosts Big Brother, admitted that he and Chen discuss the show in the privacy of their own home.