The advent of television in the mid-20th century revolutionized the entertainment industry, with networks like NBC, CBS, and ABC becoming household names. Television studios like MGM Television, Paramount Television, and Universal Television produced popular shows like I Love Lucy (1951-1957), The Twilight Zone (1959-1964), and Star Trek (1966-1969). The cable industry also experienced significant growth, with channels like HBO, MTV, and CNN offering new platforms for entertainment and information.