In the 1950s the studios were used by Mercia Film Productions, who made feature films, and Rayant Pictures, who made shorts and adverts. The last film made at Wembley was Ealing Studios' The Ship That Died of Shame (US: PT Raiders, 1955). Wembley Film Studio was taken over by Associated-Rediffusion, ITV's weekday broadcasters for London, in January 1955. Two of the existing studios were fully converted by the time commercial television began in September 1955, with the other two by the end of the year. An expansion on the site, the newly built Studio 5, opened in 1960. It was the largest television studio in Europe, and could be split into two parts for separate productions when required. The first production was An Arabian Night with Orson Welles. Shows such as Ready Steady Go!, No Hiding Place and Take Your Pick were to follow. During the 1960s the studios were home to some of the most popular programmes on the ITV network, including The Rat Catchers, Blackmail, At Last, The 1948 Show and The Frost Report. The Beatles appeared on more than one occasion at the studios. When Associated-Rediffusion lost its weekday ITV franchise in 1968, the television studios entered a difficult period. For a time they became LWT's broadcast base and were used to record shows such as On the Buses, Please Sir and Upstairs Downstairs. The 1970s through to the 1990s saw the demise and demolition of the film studio complex and the decline of the television studios under many different owners. Fountain Television began its existence as a studio and post-production facility in New Malden, Surrey in 1985. After hosting shows such as Ready Steady Cook and Wizadora, the company took the opportunity to purchase the badly run-down Wembley site in 1993 for redevelopment. Studio 5 (now known as Studio A & Studio B), is including the firelanes. An unusual feature of the studio is a soundproof double door which can be lowered in 30 minutes to reconfigure the space into two separate studios, each with its own independent control facilities. When used as a single studio, it was the largest fully equipped television studio in the UK – larger than HQ1 at Dock10, MediaCityUK in Salford and larger than Studio 1 at BBC Television Centre. Internationally, larger studios exist in Germany and in the United States, although many of these fall into the category of soundstages