Ted Koppel will contribute to BBC World News America's coverage of the G20 Summit today and tomorrow, joining anchors Matt Frei and Mishal Husain.

Frei anchors in D.C. and Husain in London. Katty Kay contributes to the broadcasts as well. BBC World News America airs at 7pmET on BBC America and BBC World News.

Koppel joined BBC World News in July 2008.

• Earlier: The three evening news anchors broadcast live from London.