system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: Why does it seem like every FM radio station goes on commercial at the same time?
gpt
Monopolies.  Clearchannel (or iHeart, or whatever it's called now) owns thousands of stations and dominates the audience share in almost every major market.  In some cities, literally every station on the air is owned by Clearchannel.  They benefit by synching commercial times so that you can't just change the station to get away from the commercial.