debut on BBC One. Danger Mouse debuts on ITV. ATV, Southern, and Westward go off air after losing their broadcasting franchises – they are replaced on 1 January 1982 by Central, TVS and TSW respectively. 1982 in British television – Channel 4, Britain's fourth terrestrial channel, goes on air, along with the first airing of its first and long running teatime game show Countdown and first animated Christmas special The Snowman; S4C, a Welsh-language version is also launched. "The Satellite Channel", the channel which later became Sky One, also goes on air. 1983 in British television – BBC One and ITV launch their respective breakfast television services. Children's ITV is also launched. 1983 also sees Bob Holness presenting the first edition of Blockbusters on ITV. 1984 in British television – Thames Television goes off the air for one day when technical staff walk out on strike, BBC One airs the first edition of Crimewatch and Thomas the Tank Engine and Friends debuts on ITV 12 years before moving to satellite channels Cartoon Network and Nick Jr. 1985 in British television – EastEnders debuts along with Howards' Way, Bertha and Telly Addicts on BBC One, The 17-hour Live Aid concert takes place in both London and Philadelphia, The last 405-line transmitters are switched off in the UK and Children's BBC is also launched. 1986 in British television – BBC One begins a full daytime schedule service for the first time with Australian soap Neighbours making its UK debut as part of the schedule, while Yorkshire becomes the first ITV region to begin broadcasting 24 hours a day. 1986 also sees Neighbours make its British television debut along with Pingu, Casualty and Catchphrase. 1987 in British television – ThunderCats, Going for Gold and Fireman Sam all debut on BBC One; The TV-am strike begins after members of the technician's union the ACTT walk out in a dispute over the station's ‘Caring Christmas Campaign.’ What is meant to be a 24-hour stoppage continues for several months when staff are locked out by Managing Director Bruce Gyngell. TV-am is unable to broadcast Good Morning Britain. It is replaced with a skeleton service that sees non-technical staff operating cameras and Gyngell himself directing proceedings, as well as imported shows such as Flipper, Batman and Happy Days being used to fill up the station's airtime. Viewing figures remain high throughout the disruption, which continues well into