I think they mean, it's one of the types of shows that people don't typically record because they want to watch it live, so this would not be useful for sports.
A major reason for wanting to watch it live is that it's so easy to have it spoiled. And for a lot of people, a game (much more than other TV) isn't worth watching if you know the outcome. So partly, people want to watch the "action" live, but also, they just don't feel like watching it later. This can address the second part.