Brian Williams, Charlie Gibson and Katie Couric are anchoring their nightly newscasts from Great Britain tonight where Pres. and Mrs. Obama arrived a few hours ago.

Two of the broadcasts, ABC World News and CBS Evening News, led with stories on the global economy, while NBC Nightly News led with a story from the U.S. - "the new General Motors." Williams is anchoring from NBC's London bureau, Gibson at ABC's with a view of Big Ben behind him, while Couric is framed by London's Tower Bridge.

Expect a lot of coverage on the cable channels overnight and into tomorrow. Pres. Obama has meetings and an early morning (ET) news conference with British Prime Minister Gordon Brown, a reception with Queen Elizabeth in the afternoon and G-20 events throughout the day.