Output is shrinking across almost every unscripted genre — crime, travel, food and cooking among them. Sports documentary and reality programming is the lone corner still expanding, and the growth lies not in the games but in what surrounds them. So-called shoulder content — the documentaries and reality series that follow athletes on and off the field — has become a standard companion to the broadcast. Two structural forces drive it: live sports is still one of the few properties that assembles a mass audience in real time even as viewing fragments, and athletes now have a sharper incentive to build a direct relationship with fans away from the field.

Summer is when the weight of sports on television is hardest to miss. The NBA Finals and the Stanley Cup Playoffs had barely wrapped in mid-June before the World Cup began, leaving almost no gap between marquee events. Yet the reach of sports across linear and streaming is not captured by game counts alone. Documentaries and reality series that trail athletes beyond the scoreboard have become common enough to serve as an essential companion to the action.