A guest on last Thursday's The Early Show is calling for an apology from Bryant Gumbel after the host of the CBS morning show appeared to be making a profane comment about him on the air, according to AP. An unexpected camera shift supposedly caught Gumbel mouthing "What a [expletive] idiot" following the tense interview with Family Research Council spokesman Robert Knight. A CBS spokeswoman said Gumbel was "making a casual remark of some sort" but that it was unclear what he said.