Former 20/20 senior producer Roxanna Sherwood has been promoted to EP at ABC News’ Nightline, replacing Almin Karamehmedovic, who was recently named executive producer of  World News Tonight With David Muir.

“I am thrilled that she will be leading the broadcast where she spent seven formative years.  A producer when the show re-launched in 2005, Roxanna was instrumental in helping define the new way Nightline’s award-winning reports are produced,” ABC News president James Goldston said this morning in an email to staff. ” I worked with Roxanna for many years at Nightline, and witnessed her great talent producing smart, innovative, and provocative television, and am confident that her vision and leadership will take the broadcast to new heights and build on all of its recent success.

Sherwood was part of the first wave of producers trained to shoot, produce, and edit, Sherwood said, noting she shot, edited, and produced the 4-hour series about the brain that was Nightline’s first foray into primetime.