are a narrative form well suited to television because the main characters appear every week, sets and locales remain the same, and technical crews stay with the program; feature new adventures each week, but a handful of characters emerge with whom viewers can regularly identify.

Episodic series.

Explanation:

As the exercise explains, episodic series are a narrative form well suited to television because the main characters appear every week, sets and locales remain the same, and technical crews stay with the program; feature new adventures each week, but a handful of characters emerge with whom viewers can regularly identify.  Example of this type of series are or were Games of Thrones, Breaking bad, Walking Dead, Star Trek, etc.; basically any type of series that, as it's mentioned, airs an episode weekly, in which most the setup and the characters are the same, allowing the spectator to identify with the characters and get hooked by the story.

buying socks and buying shoes are independent events.