TMDB knows what airs today; asking the indexers instead would mean one query
per show per day, which is the load that wedges a Prowlarr. So the row is
bounded by air date: TV to the single day, film to a fortnight (a day of
cinema releases is usually empty). The vote floor is lifted on this row only —
a season airing now has not collected 50 votes yet, and the shared floor would
empty exactly the row it is meant to fill. The bound is computed per request,
so the row rolls over at midnight with nothing scheduled.
