21 July 1973: Charles ‘Bud’ Tingwell (Homicide)
21 July 1973: Tanya Halesworth and Susan Peacock (No Man’s Land)
21 July 1979: Terry Norris, Louise Philip, Greg Ross (Cop Shop)
21 July 1979: Don Lane and Bert Newton (The Don Lane Show)
21 July 1984: Rowena Wallace (Sons And Daughters)
21 July 1990: Simone Buchanan (Hey Dad), Beth Buchanan (Neighbours)
21 July 2007: Natalie Saleeba and Ben Lawson (Neighbours)
21 July 1990: ABC begins coverage of the 1990 Goodwill Games, being held in Seattle, USA, presenting an hour of highlights in the early evening on each day of competition as well as a further hour later in the night.
21 July 1992: ABC debuts ‘documentary series’ Sylvania Waters, a 12-part series focusing on the life of an Australian family who have been followed by a camera crew for five months.
21 July 2001: Network Ten premieres game show Moment Of Truth, hosted by Kerri-Anne Kennerley.
21 July 2002: Network Ten premieres Celebrity Big Brother with host Gretel Killeen and celebrity housemates Dylan Lewis, Kyle Sandilands, Sara-Marie Fedele, Kimberley Cooper, Adriana Xenides, Imogen Bailey, Anthony Mundine and Vanessa Wagner (Tobin Saunders).
21 July 2003: Wheel Of Fortune begins a week-long celebrity challenge, including Seven Network personalities Shelley Craft, Aristos Papandroulakis, Meave O’Meara, Melanie Symons, Rob Palmer, Dr Harry Cooper, Cindy Sargon and Patrick Thompson.
21 July 2008: After eight seasons, Network Ten reality series Big Brother Australia comes to an end — From Big Brother to big bother [2008]
21 July 2010: The Seven Network premieres documentary series The Suspects: True Australian Thrillers.