Planet Wissen — Season 4

E01 Episode 1 24 Jan 2005 E02 Episode 2 28 Jan 2005 E03 Episode 3 14 Feb 2005 E04 Episode 4 17 Feb 2005 E05 Episode 5 02 Mar 2005 E06 Episode 6 07 Mar 2005 E07 Episode 7 08 Mar 2005 E08 Episode 8 22 Mar 2005 E09 Episode 9 29 Mar 2005 E10 Episode 10 04 Apr 2005 E11 Episode 11 05 Apr 2005 E12 Episode 12 15 Apr 2005 E13 Episode 13 19 Apr 2005 E14 Episode 14 21 Apr 2005 E15 Episode 15 22 Apr 2005 E16 Episode 16 25 Apr 2005 E17 Episode 17 10 May 2005 E18 Episode 18 23 May 2005 E19 Episode 19 25 May 2005 E20 Episode 20 15 Jun 2005 E21 Episode 21 28 Jun 2005 E22 Episode 22 29 Jun 2005 E23 Episode 23 30 Jun 2005 E24 Episode 24 01 Jul 2005 E25 Episode 25 04 Aug 2005 E26 Episode 26 15 Sep 2005 E27 Episode 27 19 Sep 2005 E28 Episode 28 22 Sep 2005 E29 Episode 29 26 Sep 2005 E30 Episode 30 29 Sep 2005 E31 Episode 31 06 Oct 2005 E32 Episode 32 10 Oct 2005 E33 Episode 33 13 Oct 2005 E34 Episode 34 17 Oct 2005 E35 Episode 35 20 Oct 2005 E36 Episode 36 24 Oct 2005 E37 Episode 37 25 Oct 2005 E38 Episode 38 31 Oct 2005 E39 Episode 39 03 Nov 2005 E40 Episode 40 07 Nov 2005 E41 Episode 41 10 Nov 2005 E42 Episode 42 14 Nov 2005 E43 Episode 43 17 Nov 2005 E44 Episode 44 22 Nov 2005 E45 Episode 45 24 Nov 2005 E46 Episode 46 28 Nov 2005 E47 Episode 47 01 Dec 2005 E48 Episode 48 05 Dec 2005 E49 Episode 49 08 Dec 2005 E50 Episode 50 12 Dec 2005 E51 Episode 51 16 Dec 2005 E52 Episode 52 19 Dec 2005 E53 Episode 53 22 Dec 2005 E54 Episode 54 23 Dec 2005