Roberts and Sawyer co-anchored “Good Morning America” from 2005 through Sawyer’s exit in 2009.

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“I treasure these special moments with the incomparable @dianesawyer,” Roberts wrote in her Instagram caption ...

ABC says Diane Sawyer is stepping down as its evening news anchor, to be replaced by David Muir. The network said Sawyer will concentrate on interviews and specials. During her tenure, ABC's "World ...