NBC mid-season drama The Black Donnellys will make its debut on March 5, it has been confirmed.

The show - a gritty drama following four young, working-class Irish-American brothers living in New York and involved in organised crime - will air at 10pm after Heroes, bumping Studio 60 which the network says will return later in the season.

NBC will also replace 30 Rock with Andy Barker, PI in the 9:30pm slot on Thursdays. Rock will return to the schedule after Barker finishes on April 19.