An anchorman is a television news reporter. An anchorman typically reports from a news studio, reading the news from behind a desk.
You can use the words anchorman and anchorwoman to talk about studio-based TV newscasters, but it's becoming more common to use one word to refer to either a man or a woman. News anchor or just anchor are increasingly common names for an anchorman. In the early 20th century, an anchorman was "the last man on a tug-of-war team," but by 1958 the word described a news presenter on TV or radio.