They include Emily Deschanel's crime drama Key Witness, Taylor Schilling's What the Dead Know, Damon Wayans Jr.'s Puzzled and sitcom Jill & Ginger.
NBC instead ordered four pilots to series, including The Rockford Files reboot with David Boreanaz, Line of Fire with Peter Krause and Jake Johnson comedy Sunset P.I.
NBC said a crowded slate forced the cuts; Key Witness may be shopped elsewhere, while What the Dead Know could be retooled around Schilling's character.
As Peacock embraces AI, will a rival network turn NBC's rejected star-led drama, 'Key Witness,' into a traditional broadcast hit?
With its new slate of reboots and procedurals, is NBC signaling a retreat from ambitious dramas like the recently canceled 'Brilliant Minds'?