NBC Nightside was NBC’s second overnight newscast. The program started in 1991 and was produced in Charlotte, North Carolina by the NBC News Channel. That is not the same as MSNBC. It is the service, comparable to a wire service, that provides customized reports and video of national news to NBC affiliates. Some of Nightside’s many anchors included Antonia Mora and Campbell Brown. While the program was financially profitable and did well in the ratings, it was discontinued in 1999 because NBC wanted to use the overnight timeslot to air repeats of their late night comedy shows. The theme is composed by Michael Karp.
“Nightside” 1997 – 1998 Theme

I really wish NBC could revive the overnight news program NBC News Nightside. Perhaps the newly revived NBC News Nightside be an hour-long show seen 7 nights a week (although the Olympics every 2 years would would force it to be preempted for a 2-week period), and compete with ABC World News Now and CBS News Round-Up (used to be CBS Overnight News, Up To The Minute, and Nightwatch), and lead-in to NBC Early Today program.