Keith Olbermann, who came to Current TV this year to remake the channel and compete against his old home, MSNBC, is sitting out the biggest political nights of the season.

Despite being the biggest star on the fledging channel, Mr. Olbermann is not scheduled to anchor Current’s coverage of the Iowa caucus or the New Hampshire primary in January. Instead, Current’s other prime time anchors, Cenk Uygur and Jennifer Granholm, will be joined by the channel’s chairman, the former vice president Al Gore, according to the channel’s TV schedule…

In the television industry, Mr. Olbermann is well known for fights with his bosses; stories abound about his refusal to speak to managers and executives. At Current, this behavior has continued, according to four people with knowledge of the situation, one of whom described Mr. Olbermann as “disgruntled.”