TV shows many things. 
TV shows many stories. 


Television can change how we live and feel. 
Some shows help people who feel lonely. This is called the social surrogacy hypothesis. This means people feel like TV characters are real friends. Watching favorite shows can help people feel less alone. It can even help when a person feels sad or bad about themselves.
TV can also be a great tool for learning. Shows like Sesame Street can help kids get better grades. They can help children learn new languages too. Watching shows with families can help people bond. This can make the body release endorphins. These are chemicals that make us feel happy.
But watching too much TV can be hard on the body. It can lead to obesity, which means being very overweight. Sitting too much means you do not get enough exercise. 
Some scientists study how TV affects the brain. They think watching can lead to a state of hypnosis. This is when a person feels almost asleep while watching. It may even make it hard to focus in school. 
Experts say children under two should not watch TV. Kids aged two and older should watch only one to two hours a day.
Television has changed how people live and interact since it first began. Many experts believe its impact on society is very large. People still argue about whether these effects are good or bad. Some wonder if TV is just a new part of how humans talk to each other. 
One way TV works is through the social surrogacy hypothesis. This idea suggests that people who feel lonely use TV to feel less alone. They form a parasocial relationship, which is a fake friendship, with characters on the screen. They care about these characters as if they were real friends. Researchers Jaye Derrick, Shira Gabriel, and Kurt Hugenberg found this helps people feel less lonely. Watching a favorite show can even act as a cushion during a fight with a real friend. 
Television has also been used as a tool for learning for many years. The Media Awareness Network says it can help children learn about society. Shows like Sesame Street can help preschoolers get better grades and be more creative. Some people, like Priscilla J. S. Selvaraj, say TV can even help kids learn new languages. Learning from TV can make children feel happy and energetic. This energy can help them stay active and healthy. 
Not everyone thinks television is a good thing. In 1961, Newton N. Minow called TV programs a "vast wasteland." Some people worry that watching too much TV can lead to addiction. A study by John Robinson and Steven Martin looked at 30,000 people from 1975 to 2006. They found that people who are unhappy spend 30% more time watching TV. This can lead to a cycle of momentary pleasure but long-term regret. 
There are many facts about how much TV people own. In 1948, only 1 percent of U.S. households had a television. By 1955, that number jumped to 75 percent. By 1992, 60 percent of U.S. homes had cable television. Scientists also study how TV affects the body and the brain. Too much sitting can lead to obesity or heart problems. The American Academy of Pediatrics says children under two should not watch any TV at all.
Television is a powerful medium that has shaped human society since its invention. While media theorists generally agree its impact is dramatic, experts still debate the specific effects. They argue over whether these changes are positive or negative. Some researchers wonder if television is simply an evolutionary step in human communication. 
One significant psychological mechanism is known as the social surrogacy hypothesis. This theory suggests that people facing social isolation use television to create parasocial relationships. A parasocial relationship is a one-sided, or "faux," connection with a character. Viewers become personally invested in these characters as if they were close friends. Researchers Jaye Derrick, Shira Gabriel, and Kurt Hugenberg found that watching favorite shows can reduce feelings of loneliness. This process provides a temporary substitute for the acceptance found in real-world social connections. It can even act as a cushion to protect self-esteem during personal arguments.
Television also serves as a significant educational tool when used wisely. The Media Awareness Network notes that it helps young people understand complex social communication. For example, Dimitri Christakis conducted studies on the effects of programs like Sesame Street. He found that preschoolers who watched such shows often had higher grades and more creativity. They also read more books and valued achievement more highly. Additionally, exposure to positive role models can improve how children behave. Priscilla J. S. Selvaraj suggests that television can even help children learn new languages outside the classroom.
However, the medium has faced intense criticism regarding its quality and social influence. In 1961, Newton N. Minow famously described television programming as a "vast wasteland." Some critics argue that it changes social norms and makes once-unacceptable behavior seem normal. This is known as being a "pervasive and ubiquitous" medium. In the legal system, investigators worry about the "CSI syndrome." This refers to juries who expect to be dazzled by impressive physical evidence. Because of popular shows like CSI, jurors may acquit criminals even when there is strong testimony or motive.
Research also highlights a potential link between television and decreased life satisfaction. A study by John Robinson and Steven Martin analyzed 30,000 people from 1975 to 2006. They discovered that people who are unsatisfied with their lives watch 30% more television than satisfied people. Robinson suggested that this can create an addictive cycle of momentary pleasure followed by long-term regret. 
Television also has measurable physical and neurological effects. Watching television can lead to sedentary behavior, which is sitting for long periods without moving. The American Academy of Pediatrics recommends that children under two should watch no television at all. For children aged two and older, they suggest a limit of one to two hours daily. Watching more than four hours a day is linked to a higher risk of becoming overweight. Physical inactivity is also associated with risks for diabetes and cardiovascular disease. Some scientists believe that watching TV can trigger the release of dopamine in the basal ganglia. They suggest that high amounts of dopamine might affect how the brain processes pain and pleasure.
The history of television ownership shows how quickly the medium became part of daily life. In 1948, only 1 percent of U.S. households owned a television. By 1955, that number had risen to 75 percent. By 1992, 60 percent of U.S. households had cable television subscriptions. 
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