This Day Tonight was replaced by Nationwide in 1979, and ran until the hour-long news and current affairs program, The National, began in 1984.
A new act of parliament changed the 'Commission' to 'Corporation' in 1983, signalling the start of a significant restructure to make the organisation more relevant and cost-effective. Radio and television were split into separate divisions, and an overhaul of management, property and finance began. Sir Talbot Duckmanton retired as General Manager of the ABC in 1982, and the following year Geoffrey Whitehead became the first Managing Director of the new Australian Broadcasting Corporation.