| Episode | Channel | Broadcast | Viewers | Share | Pos | |
| The Zygon Invasion | |  |  | Sat 31 Oct 2015 9:00pm EDT | 0.58m | | 36 |  |
| The Zygon Invasion | | | | Sun 1 Nov 2015 5:00am EST | | | | |
| The Zygon Invasion | | | | Sat 7 Nov 2015 8:00pm EST | | | | |
| The Zygon Inversion | | | | Sat 7 Nov 2015 9:00pm EST | 0.91m | | 12 | |
| The Zygon Inversion | | | | Sun 8 Nov 2015 12:15am EST | | | | |
| The Zygon Inversion | | | | Sun 8 Nov 2015 2:30am EST | | | | |
| The Zygon Inversion | | | | Sat 14 Nov 2015 8:00pm EST | | | | |
| The Zygon Invasion | | | | Fri 25 Dec 2015 2:30pm EST | | | | |
| The Zygon Inversion | | | | Fri 25 Dec 2015 3:30pm EST | | | | |
| The Zygon Invasion | | | | Wed 13 Jan 2016 11:00am EST | | | | |
| The Zygon Inversion | | | | Thu 14 Jan 2016 10:00am EST | | | | |
| Doctor's Notes: The Zygon Invasion / The Zygon Inversion | | | | Sat 20 Feb 2016 9:00pm EST | | | | |
| The Zygon Invasion | | | | Mon 31 Oct 2016 6:00am EDT | | | | |
| The Zygon Inversion | | | | Mon 31 Oct 2016 7:00am EDT | | | | |
| The Zygon Invasion | | | | Thu 3 Nov 2016 9:00am EDT | | | | |
| The Zygon Inversion | | | | Thu 3 Nov 2016 10:00am EDT | | | | |
| The Zygon Invasion | | | | Sun 25 Dec 2016 2:00pm EST | | | | |
| The Zygon Inversion | | | | Sun 25 Dec 2016 3:05pm EST | | | | |
| The Zygon Invasion | | | | Mon 26 Dec 2016 5:00am EST | | | | |
| The Zygon Inversion | | | | Mon 26 Dec 2016 6:00am EST | | | | |
| The Zygon Invasion | | | | Thu 9 Feb 2017 8:00am EST | | | | |
| The Zygon Inversion | | | | Thu 9 Feb 2017 9:00am EST | | | | |
| The Zygon Invasion | | | | Wed 15 Mar 2017 10:00am EDT | | | | |
| The Zygon Inversion | | | | Wed 15 Mar 2017 11:00am EDT | | | | |
| The Zygon Inversion | | | | Thu 16 Mar 2017 3:15am EDT | | | | |
| The Zygon Invasion | | | | Sat 15 Apr 2017 11:10am EDT | | | | |
| The Zygon Inversion | | | | Sat 15 Apr 2017 12:15pm EDT | | | | |
| The Zygon Invasion | | | | Wed 17 May 2017 9:00am EDT | | | | |
| The Zygon Inversion | | | | Wed 17 May 2017 10:00am EDT | | | | |
| The Zygon Invasion | | | | Mon 19 Jun 2017 8:00am EDT | | | | |
| The Zygon Inversion | | | | Mon 19 Jun 2017 9:00am EDT | | | | |
| The Zygon Invasion | | | | Tue 18 Jul 2017 11:00am EDT | | | | |
| The Zygon Invasion | | | | Fri 11 Aug 2017 10:00am EDT | | | | |
| The Zygon Inversion | | | | Fri 11 Aug 2017 11:00am EDT | | | | |
| The Zygon Invasion | | | | Tue 12 Sep 2017 9:00am EDT | | | | |
| The Zygon Inversion | | | | Tue 12 Sep 2017 10:00am EDT | | | | |
| The Zygon Invasion | | | | Thu 19 Oct 2017 1:00pm EDT | | | | |
| The Zygon Invasion | | | | Fri 20 Oct 2017 9:00am EDT | | | | |
| The Zygon Inversion | | | | Fri 20 Oct 2017 10:00am EDT | | | | |
| The Zygon Invasion | | | | Sun 24 Dec 2017 3:40pm EST | | | | |
| The Zygon Inversion | | | | Sun 24 Dec 2017 4:45pm EST | | | | |
| The Zygon Invasion | | | | Mon 12 Mar 2018 7:00am EDT | | | | |
| The Zygon Inversion | | | | Mon 12 Mar 2018 8:00am EDT | | | | |
| The Zygon Invasion | | | | Thu 27 Sep 2018 2:30pm EDT | | | | |
| The Zygon Inversion | | | | Thu 27 Sep 2018 3:35pm EDT | | | | |
| #DoctorWhoLockdown: The Zygon Invasion/Inversion | |  |  | Sun 10 May 2020 7:15pm BST | | | | |
| The Zygon Invasion | | | | Mon 28 Dec 2020 10:10am EST | | | | |
| The Zygon Inversion | | | | Mon 28 Dec 2020 11:15am EST | | | | |
| The Zygon Invasion | | | | Thu 30 Dec 2021 10:10am EST | | | | |
| The Zygon Inversion | | | | Thu 30 Dec 2021 11:15am EST | | | | |
