BBC Horizon - Temporada 18
Ep. 1 - 05/01/1981
Ep. 2 - 12/01/1981
Ep. 3 - 19/01/1981
Ep. 4 - 26/01/1981
Ep. 5 - 02/02/1981
Ep. 6 - 09/02/1981
Ep. 7 - 16/02/1981
Ep. 8 - 02/03/1981
Ep. 9 - 09/03/1981
Ep. 10 - 16/03/1981
Ep. 11 - 23/03/1981
Ep. 12 - 30/03/1981
Ep. 13 - 06/04/1981
Ep. 14 - 11/04/1981
Ep. 15 - 13/04/1981
Ep. 16 - 28/09/1981
Ep. 17 - 05/10/1981
Ep. 18 - 12/10/1981
Ep. 19 - 19/10/1981
Ep. 20 - 26/10/1981
Ep. 21 - 02/11/1981
Ep. 22 - 09/11/1981
Ep. 23 - 16/11/1981
Ep. 24 - 23/11/1981
Ep. 25 - 30/11/1981
Ep. 26 - 07/12/1981
Ep. 27 - 21/12/1981