NEW YORK — The WGN Superstation is going for speed, greenlighting its second original series, “Race Car Driver,” a weekly reality half-hour that will go behind the scenes with star driver ...

That’s the earliest the superstation has ever laid hands on a comedy with the Nielsen potential of a “Will & Grace,” encouraging WGN to raise its revenue estimates for next season.

The reality was WGN had suddenly become a “superstation,” a local TV station with national reach. “It made it really an exciting thing for the station to have this national presence as a ...