So the Camden 23 and Trenton 52 stations are on the same tower, airing identical programming. And the Montclair 50 and New Brunswick 58 stations are also on one tower, airing the same programming. Yes, really silly. But the state made hundreds of millions of dollars by doing it. I live in NJ and almost never tune in NJ PBS.
I have to wonder if this was to retain all four licenses, rather than relinquishing two of them. WNTV/WRET in Greenville and Spartanburg respectively (SCETV) are in a similar situation, and they use separate PSIP data for what is essentially one station. I've had to wonder if that, too, is to keep both licenses active.