Williams, Costas cover Olympics

NBC anchor Brian Williams will join veteran sportscaster Bob Costas in hosting the opening ceremonies of the Turin Winter Olympics, airing at 8 p.m. Friday on NBC.

It will be the first Olympics gig for Williams, who fills the role “Today” anchor Katie Couric played during the recent games in Sydney, Salt Lake City and Athens. But this year, Couric’s duties for the “Today” show -- for which she’s broadcasting this week from various spots around Italy -- will cause her to miss the rehearsal for the opening ceremonies.

Couric, along with “Today” co-host Matt Lauer and weatherman Al Roker, will broadcast daily from Turin and other Olympic locations for the morning show.