"The decision has been made. He's gone," an insider at the cable channel told me. "The [parent company] Comcast guys have decided. Word is spreading through the building."

Baldwin's dismissal was decided on partly because of his diva-like behavior toward co-workers, a source said ... Baldwin alienated staffers when he demanded a separate makeup room being used by a woman with cancer who is sensitive to hairspray.

When Baldwin was told he couldn't have his way, he allegedly bellowed at the top of his lungs, "I don't give a fuck if she has cancer or not, I want that fucking makeup room."