Per its title, the NBC sitcom “The Fall and Rise of Reggie Dinkins” is a comeback story, but it’s also a reunion. Comedian Tracy Morgan has produced a wide-ranging body of work since his breakout on “Saturday Night Live” at the turn of the millennium — and, more dramatically, since sustaining severe injuries in a New Jersey traffic collision in 2014. But his most iconic role remains, if not himself, then a part directly adjacent to his own persona: Tracy Jordan, the chaotic yet lovable co-lead of Tina Fey’s meta entertainment satire “30 Rock.” For seven seasons, Morgan balanced deep-cut cultural references and cracks about corporate mergers with a needed dose of anarchy, while Fey and her writers formed a knack for channeling Morgan’s ebullient energy into absurd, instantly iconic bits like “Werewolf Bar Mitzvah” or the concept of an Egot.
“Reggie Dinkins” is co-created by Robert Carlock and Sam Means,…