 Complete the following phrase:  Opened on 29 June 1960, it was designed as a drama studio and had customised panels and fittings. The walls were slightly thicker to insulate it from noise from the Hammersmith  City line then still part of the Metropolitan line of the London Underground. It was the first studio to be completed and was upgraded to colour in 1969. Studio 3 currently broadcasts ITV programmes Good Morning Britain and This Morning. It was one of two studios that hosted the 