People like to share their experiences, especially their entertainment experiences.
The earliest forms of entertainment were communal experiences in crowds on street corners or in theaters with an audience. When television first came along it created that same sense of audience. According to Kevin Slavin, “Television started off not as radio with pictures, but rather as theater in your home. All the shows were broadcast live in front of a real audience, not recorded and later edited.”
Eventually television did offer recorded programing that underwent editing before it was broadcasted. Interestingly, the studios noticed a decline in viewership. That’s because the human brain, specifically the limbic system, is wired to look for meaning in the meaning that other people find. People wanted to find meaning through the shared experience of watching television.