| Episode | Channel | Broadcast | Viewers | Share | Pos | |
| Part Four | Sydney, Melb, Canberra, Hobart |  |  | Fri 3 Mar 1978 6:30pm AEDT | | | |  |
| Part Four | Adelaide | | | Fri 3 Mar 1978 6:30pm ACDT | | | | |
| Part Four | Perth | | | Fri 3 Mar 1978 ~6:30pm AWST | | | | |
| Part Four | Brisbane | | | Tue 14 Mar 1978 6:30pm AEST | | | | |
| Part Four | Sydney, Canberra | | | Fri 1 Sep 1978 ~6:30pm AEST | | | | |
| Part Four | Melbourne, Hobart | | | Mon 4 Sep 1978 ~6:30pm AEST | | | | |
| Part Four | Adelaide | | | Mon 25 Sep 1978 6:30pm ACST | | | | |
| Part Four | Brisbane | | | Wed 18 Oct 1978 6:30pm AEST | | | | |
| Part Four | Sydney, Brisbane, Canberra, Ho | | | Mon 8 Oct 1979 6:30pm AEST | | | | |
| Part Four | Melbourne, Adelaide | | | Thu 11 Oct 1979 ~6:30pm AEST | | | | |
| Part Four | Sydney, Brisbane, Canberra | | | Thu 25 Sep 1980 6:30pm AEST | | | | |
| Part Four | Melbourne, Adelaide, Hobart | | | Tue 30 Sep 1980 ~6:30pm AEST | | | | |
| Part Four | Perth | | | Thu 2 Oct 1980 ~6:30pm AWST | | | | |
| Part Four | National except Hobart | | | Tue 31 Aug 1982 6:30pm AEST | | | | |
| Part Four | Hobart | | | Wed 1 Sep 1982 ~6:30pm AEST | | | | |
| Part Four | National except Hobart & Adela | | | Mon 14 Nov 1983 6:30pm AEDT | | | | |
| Part Four | Adelaide, Hobart | | | Tue 15 Nov 1983 ~6:30pm AEDT | | | | |
| Part Four | | | | Mon 27 Mar 1989 5:30pm AEST | | | | |
| Part Four | | | | Mon 30 Aug 1993 4:30am AEST | | | | |
| Part Four | |  | | Wed 9 Jul 1997 11:30pm AEST | | | | |
| Part Four | | | | Thu 1 Feb 2001 11:30pm AEDT | | | | |
| Part Four | | | | Sun 18 Feb 2001 8:30am AEDT | | | | |
| Part Four | | | | Mon 19 Feb 2001 2:30am AEDT | | | | |
| Part Four | |  | | Tue 14 Dec 2004 6:05pm AEDT | | | | |
| Part Four | |  | | Fri 9 Sep 2011 6:25am AEST | | | | |
| Part Four | | | | Fri 9 Sep 2011 6:00pm AEST | | | | |
| Part Four | | | | Fri 9 Sep 2011 10:45pm AEST | | | | |
| Part Four | | | | Wed 11 Sep 2013 8:05am AEST | | | | |
| Part Four | | | | Wed 11 Sep 2013 6:00pm AEST | | | | |
| Part Four | | | | Wed 11 Sep 2013 11:00pm AEST | | | | |
| Part Four | |  | | Fri 24 Jan 2014 4:00pm AEDT | | | | |
| Part Four | | | | Mon 27 Jan 2014 8:00am AEDT | | | | |
| Part Four | | | | Wed 2 Jul 2014 4:00pm AEST | | | | |
| Part Four | | | | Thu 3 Jul 2014 6:30am AEST | | | | |
| Part Four | | | | Thu 1 Jan 2015 6:30am AEDT | | | | |
| Part Four | | | | Thu 5 Nov 2015 6:00am AEDT | | | | |
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