studio. Studio D, with permanent audience seating, was used for light entertainment programmes such as the ATV Morecambe and Wise series (Two of a Kind, 1961–68) and The Muppet Show (1976–81). ATV was restructured as Central Independent Television for the new contractual period beginning in January 1982. One of the conditions of its licence renewal by the governing body of the ITV network, then the Independent Broadcasting Authority (IBA), was that ATV should vacate any London-based facilities and become entirely focused on the English Midlands, the region of the United Kingdom for which it had held the ITV franchise since 1968. For the last 18 months of its use as an ITV production studio, the complex was under the ownership of Central Independent Television; as ATV ceased to exist as a company at the end of 31 December 1981. The studios remained in operation by Central TV up until July 1983 (the final production under Central ownership being a Max Bygraves-era episode of Family Fortunes), when its new East Midlands Television Centre in Nottingham was completed. BBC Elstree Centre When the BBC bought the Elstree site in 1984 to produce its new soap opera EastEnders (first aired on 19 February 1985), it did not purchase the equipment within the building. Some sources state that as a consequence, Central TV's studio technicians were instructed to make the equipment left behind inoperable (there are particular claims about the camera prisms being smashed). Other sources dispute this, claiming the equipment was already so old and worthless there would have been no gain in intentionally disabling it. When the BBC moved in, it repaired equipment that was not beyond repair, sometimes using spare parts from identical pieces of equipment already in BBC use. The EMI 2001 television cameras used in Studio 3 at BBC Television Centre, Shepherd's Bush, were moved into the newly renamed 'BBC Elstree Centre' as part of that studio's refurbishment, instead of being stripped down for spare parts. Central TV's own EMI 2001s were considered to be beyond economic repair by BBC staff sent to examine the site, regardless of whether they had been intentionally disabled or not by Central TV employees. Elstree kept the EMI 2001s until 1991. Elstree's first new cameras were to be Thomson TTV-1531s, one of the last plumbicon-tubed cameras to be made. These camera were again replaced in the mid-1990s with Thomson TTV-1542 and TTV-1647 lightweight