When I first heard about “ Masters of the Air ,” I assumed it had to be an HBO show. After all, its predecessors “Band of Brothers” and “The Pacific” were major hits for the prestige TV network. But even though this show is on Apple TV Plus instead, you’d be forgiven for thinking it’s an HBO show after watching it. The cinematography, the polish, the standout star performance from Austin Butler — impressive given the loaded cast — and the score all have the hallmarks of the best HBO has offered in the past. And that’s a major win...