Question: John Michael Bolger plays Lt. Johnson on Third Watch, but didn't he star in another NBC series about the New York E.S.U. called, I think, True Blue? 1991 to 1993 — somewhere in there? — Lou R., Fairfield, Cal.

Televisionary: That he did, Lou. The short-lived True Blue was on NBC from December 1989 to April 1990.

Bolger belonged to the Emergency Services Unit, which was also populated by castmates such as Nestor Serrano, Ally Walker, Darnell Williams, Eddie Velez, Grant Show and Timothy Van Patten. The unit's members were constantly on the go, moving throughout the city so they could respond as quickly as possible to various crimes and emergencies.