Why do people call continuous TV shows soap?

The term "soap Opera" originated from the early radio and television dramas that were sponsored by soap manufacturers, such as Procter & Gamble. These shows often focused on serialized storytelling, featuring melodramatic plots centered around family and romantic relationships. The "opera" aspect reflects the dramatic and emotional storytelling style, akin to that of a theatrical opera. Over time, the term has come to refer to any continuous, episodic television show that emphasizes character-driven narratives.