What's the origin of the word "season?" Is it called a "season" because the show was on air for every season of the year?

Native speaker’s answer
Rebecca
No, "season" in the film context just means a set or sequence of related television programs. It doesn't have to do with the Earth's seasons. It just means one entire set of a certain show, no matter how many episodes that is. Ex: This will be the last season of the show. Ex: What's your favorite Game of Thrones season? Mine is the first season!