
Anuj B. answered 08/04/19
Multiple Scholarship-Winning Essay Writer, 5+ years teaching writing!
I would consider having two characters having a casual conversation that somehow involves that topic. For example in the party scenario you discussed, perhaps two characters are planning the party and one asks "But if ___ people come won't we have to pay the group fee?". These kinds of conversations/interactions are a great way to provide the reader (or viewer in the case of film) with exposition about this created world, without being on-the-nose. In this case, the reader still doesn't quite know what the characters are talking about, but through further development you can leave just enough bread crumbs for them to figure out that the TV is tracking how many viewers there are.