'Today' producer upped

Senior "Today" producer Dee Dee Thomas has been upped to exec producer on "Weekend Today." Thomas will report to "Today" exec producer Jim Bell and work closely with anchors Lester Holt, Amy Robach and Jenna Wolfe. Thomas has overseen several special broadcasts during her tenure at "Today," along with coverage for five Olympic Games and two different "Today Throws a Wedding" broadcasts. The producer has been with NBC News since 1993 and joined "Today" in 1995.Also at NBC News' weekend programs, Sam Singal has been named exec producer of weekend editions of "NBC Nightly News." Singal, too, will work with Holt on his broadcasts, and will report to "Nightly News" exec producer Patrick Burkey. Singal has been with NBC News since 1998 and "Nightly News" since 2002 and has covered, among other events, Ted Kennedy's funeral and the most recent withdrawal of American troops from Iraq. Contact Sam Thielman at sam.thielman@variety.com