Universal Studios Hollywood is located in Hollywood on the northern outskirts of Los Angeles. At the beginning of the 20th century, film producers discovered the ideal natural environment for filming, and they gradually concentrated on it, making this land gradually become a world-famous film city.  Since 1912, production companies were established one after another. By 1928, a line-up of film companies led by Paramount and eight major film companies had been formed. The thirties and forties were the heyday of Hollywood, and they produced a large number of outstanding films that became masterpieces in the history of film, and made the influential American movies that are famous all over the world.  At the same time, Hollywood has also developed into a cultural centre in the United States. Many writers, musicians, movie stars and others have gathered here. After the Second World War, the studios moved out one after another, and many filming facilities were idle or changed to TV film makers. In the early 1960s, Hollywood became the main production base for American television programs.