Tiernan will follow in the footsteps of The IT Crowd star Chris O'Dowd, developing an original sitcom for the satellite broadcaster based on a successful one-off festive short under the Little Crackers strand.
O'Dowd's Moone Boy launched to critical acclaim late last Summer, and has already filmed a second series with a third in production. Tiernan's comedy, as yet untitled, is intended to be filmed later this year on location in Ireland.
A Baby Cow production, the Little Crackers episode to inspire the series, Howler, was broadcast on 12th December and both written by and starred Tiernan. He played an increasingly stressed father who is encouraged by a therapist to "unleash his inner canine" and "bark" his tensions out following a divorce.
Speaking to Irish radio station TodayFM, Tiernan revealed that the six-part sitcom would follow a man who moves in with his elderly mother after being released from a psychiatric hospital.
The series is likely to be broadcast early next year.