Sharon Osbourne, NBC Spat Intensifies

"America's Got Talent" host says she's quitting, claims NBC fired son after MS diagnosis.
3:00 | 08/08/12

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Transcript for Sharon Osbourne, NBC Spat Intensifies
Sharon Osborne America's got -- -- she's quitting the show because NBC Mayer's son Jack went through. -- -- -- -- George things are getting -- Jack announces MS diagnosis in June just weeks before he was set to start filming an action packed reality series called stars -- stripes. But he says he was fired two days before it was scheduled to report to work and now his mom it's coming to his defense. Jack Osbourne has made no secret he's furious he was removed from the cast of NBC stars earned stripes. Even talking with his mom about it on the talk. Unfortunately if the company to hide me. Didn't think I could actually perform the job and out of everything that's well that's well beaten -- take me off the most because it's like. Don't tell me what I can and cannot do. But now Osborne's mother Sharon is joining her son's battle telling the New York Post she's quitting her job as a judge on NBC's America's Got Talent because she says -- the network fired her son. Fantastic and now Sharon says the final straw came after executives sent an email saying they were booting Jack from the new boot camp -- -- because of his multiple sclerosis. Sharon tells the post I just can't be fake it's discrimination. And it was badly handled. It's time to move on -- but producers of the new show which pits celebrities against one another and military training exercises. Say they never hired Jack for the show trying. In a statement producer said we required all potential participants undergo medical -- to ensure that they could safely participate. We did not ask Jack to participate in the competition. This network does not discriminate on any basis. Overnight Jack fired back tweeting NBC said they didn't fire me over my diagnosis. Bull expletive boycott NBC. This is something that Jack has had to deal with for the first time. He now not only has a disease but he's dealing went. Losing work over at losing money over it and having people -- to him as not capable of being able to do the things that he knows he's capable of doing. -- isn't exactly out of work last month he told Robin how his diagnosis isn't stopping him with all these new projects that you have talk about the new address last week on scifi channel yet it's a shot outside bankrolled up onto the highway we film these investigations also -- We go often -- -- you know we investigate kind of the panel on the haunted. Meantime Sharon Osbourne is still under contract with America's Got Talent but she says they -- not force -- to do some things that she does not want to do. Now to add to the mystery of it all Sharon Osborne has hinted about leaving America's Got Talent as recently as two weeks ago tweeting quote money is not the reason I'm not returning dot dot dot. That led some to speculate that Jack's current conflict with NBC may not have been the final straw among other -- that she's been having some of this being a red -- naturally it is still not definite. He's not happening she's -- the top -- as well as she's going to be hard reminiscent mom defending her son.

This transcript has been automatically generated and may not be 100% accurate.

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