The 40-year-old public television network was shut down by Gov. Chris Christie, who says the state should not be in the broadcasting business and can't afford it.
An effort this week to spare the station was defeated in the Legislature.
Instead of reporting on the day's events, Thursday's final newscast focused on the history of the station.
New York-based WNET-TV will run a New Jersey service known as NJTV. Under a deal with New Jersey, it will broadcast 20 hours a week of New Jersey-centric programming.
NJN's news reports specialized in covering the state government. In its final weeks, the network was confronted with reporting its own demise.
Most of the station's 130 employees will retire or face layoffs.