This crackerjack American sitcom knows exactly what it wants to do. Fancy a daft vintage television advert from a fast-food giant featuring the title character, Tracy Morgan’s disgraced former gridiron superstar? You’ll have to wait all of 32 seconds for that. The jokes start early in this mockumentary, and they never stop: absurd reasoning, ludicrous digs, cutaways to past embarrassments, and pop-culture punchlines all populate The Fall and Rise of Reggie Dinkins.