| Episode | Channel | Broadcast | Viewers | Share | Pos | |
| Welcome to Torchwood | |  |  | Thu 17 Jul 2008 7:45pm PDT | | | |  |
| Welcome to Torchwood | | | | Sat 19 Jul 2008 10:45pm PDT | | | | |
| Welcome to Torchwood | | | | Sun 20 Jul 2008 1:47am PDT | | | | |
| Welcome to Torchwood | | | | Mon 21 Jul 2008 1:45am PDT | | | | |
| Welcome to Torchwood | | | | Mon 21 Jul 2008 10:45pm PDT | | | | |
| Welcome to Torchwood | | | | Tue 22 Jul 2008 3:15am PDT | | | | |
| Welcome to Torchwood | |  | | Thu 24 Jul 2008 10:45pm EDT | | | | |
| Welcome to Torchwood | |  | | Sat 26 Jul 2008 10:45pm CDT | | | | |
| Welcome to Torchwood | | | | Sun 27 Jul 2008 1:45am EDT | | | | |
| Welcome to Torchwood | | | | Sun 27 Jul 2008 6:45pm CDT | | | | |
| Welcome to Torchwood | |  | | Sun 24 Aug 2008 12:45am CDT | | | | |
| Welcome to Torchwood | |  | | Sat 27 Sep 2008 11:43pm EDT | | | | |
| Welcome to Torchwood | |  | | Sat 27 Sep 2008 11:45pm CDT | | | | |
| Welcome to Torchwood | |  | | Sun 28 Sep 2008 9:45pm PDT | | | | |
| Welcome to Torchwood | | | | Sat 15 Nov 2008 10:45pm CST | | | | |
| Welcome to Torchwood | | | | Mon 17 Nov 2008 2:15am CST | | | | |
| Welcome to Torchwood | | | | Fri 21 Nov 2008 11:45pm PST | | | | |
| Welcome to Torchwood | | | | Sat 22 Nov 2008 5:45am PST | | | | |
| Welcome to Torchwood | | | | Thu 8 Jan 2009 11:45pm EST | | | | |
| Welcome to Torchwood | | | | Sat 10 Jan 2009 5:45pm EST | | | | |
| Welcome to Torchwood | | | | Sat 10 Jan 2009 11:45pm EST | | | | |
| Welcome to Torchwood | | | | Sat 17 Jan 2009 11:45pm CST | | | | |
| Welcome to Torchwood | | | | Sun 17 May 2009 12:45am CDT | | | | |
| Welcome to Torchwood | | | | Fri 29 May 2009 11:46pm PDT | | | | |
| Welcome to Torchwood | | | | Sat 30 May 2009 5:46am PDT | | | | |
| Welcome to Torchwood | | | | Sun 19 Jul 2009 11:45pm CDT | | | | |
| Welcome to Torchwood | |  | | Thu 23 Jul 2009 8:43pm EDT | | | | |
| Welcome to Torchwood | | | | Fri 24 Jul 2009 12:43pm EDT | | | | |
| Welcome to Torchwood | | | | Sat 25 Jul 2009 3:45am CDT | | | | |
| Welcome to Torchwood | | | | Sat 25 Jul 2009 6:43pm EDT | | | | |
| Welcome to Torchwood | | | | Sat 3 Oct 2009 11:45pm CDT | | | | |
| Welcome to Torchwood | | | | Sun 11 Oct 2009 11:45pm PDT | | | | |
| Welcome to Torchwood | | | | Mon 12 Oct 2009 5:45am PDT | | | | |
| Welcome to Torchwood | |  | | Sat 19 Dec 2009 11:45pm EST | | | | |
| Welcome to Torchwood | |  | | Sat 25 Oct 2014 11:43pm CDT | | | | |
| Welcome to Torchwood | | | | Sat 6 Jun 2015 11:43pm CDT | | | | |
| Welcome to Torchwood | | | | Sat 20 Jun 2015 11:45pm EDT | | | | |
| Welcome to Torchwood | | | | Mon 22 Jun 2015 4:45am EDT | | | | |
| Welcome to Torchwood | | | | Thu 25 Jun 2015 12:45pm EDT | | | | |
| Welcome to Torchwood | | | | Sat 27 Jun 2015 4:45pm EDT | | | | |
| Welcome to Torchwood | |  | | Sun 17 Apr 2016 1:43am EDT | | | | |
