Independent Broadcasting Authority rival Sky Television plc was able to launch an analogue service and intended to overshadow BSB by leasing transponders from Société Européenne des Satellites' RCA Astro-built satellite, Astra 1A. After around a year, the company merged with BSB. The IBA was disbanded as part of the Broadcasting Act 1990, being replaced on New Year's Day 1991 by the Independent Television Commission (ITC) (which also absorbed the Cable Authority), and the Radio Authority (RAu), which have since been merged with other regulators such as Broadcasting Standards Commission (BSC) and Oftel (Office of Telecommunications) to form one regulator, Ofcom. All of the
Television in Australia a colour digital format, via a range of means including terrestrial television, satellite television as well as a number of cable services. Both free-to-air and subscription channels and networks are available. The analogue network has been phased out, with the last service being switched off in December 2013. In most areas there is a choice of three free-to-air commercial broadcasters as well as two national public broadcasters, the Australian Broadcasting Corporation and the Special Broadcasting Service. A third, recently established, National Indigenous Television service is available in many remote areas. Commercial television is dominated by three major metropolitan-based networks, the