| Episode | Channel | Broadcast | Viewers | Share | Pos | |
| The Dimensions of Time | |  |  | Thu 10 Dec 2020 8:30pm EST | | | | |
| The Search | | | | Fri 11 Dec 2020 8:00pm EST | | | | |
| The Final Phase | | | | Fri 11 Dec 2020 8:30pm EST | | | | |
| The Space Museum | | | | Sat 20 Feb 2021 6:00pm EST | | | | |
| The Dimensions of Time | | | | Sat 20 Feb 2021 6:30pm EST | | | | |
| The Search | | | | Sat 20 Feb 2021 7:00pm EST | | | | |
| The Final Phase | | | | Sat 20 Feb 2021 7:30pm EST | | | | |
| The Space Museum | | | | Sun 28 Mar 2021 6:00pm EDT | | | | |
| The Dimensions of Time | | | | Sun 28 Mar 2021 6:30pm EDT | | | | |
| The Search | | | | Sun 28 Mar 2021 7:00pm EDT | | | | |
| The Final Phase | | | | Sun 28 Mar 2021 7:30pm EDT | | | | |
| The Space Museum | | | | Mon 13 Sep 2021 8:00pm EDT | | | | |
| The Dimensions of Time | | | | Mon 13 Sep 2021 8:30pm EDT | | | | |
| The Search | | | | Tue 14 Sep 2021 8:00pm EDT | | | | |
| The Final Phase | | | | Tue 14 Sep 2021 8:30pm EDT | | | | |
| The Space Museum | |  | | Sat 9 Apr 2022 11:00pm PDT | | | | |
| The Dimensions of Time | | | | Sat 9 Apr 2022 11:30pm PDT | | | | |
| The Space Museum | | | | Sun 10 Apr 2022 4:00am PDT | | | | |
| The Dimensions of Time | | | | Sun 10 Apr 2022 4:30am PDT | | | | |
| The Search | | | | Sat 16 Apr 2022 11:00pm PDT | | | | |
| The Final Phase | | | | Sat 16 Apr 2022 11:30pm PDT | | | | |
| The Search | | | | Sun 17 Apr 2022 4:00am PDT | | | | |
| The Final Phase | | | | Sun 17 Apr 2022 4:30am PDT | | | | |
| The Space Museum | | | | Sat 4 Jun 2022 6:00pm EDT | | | | |
| The Dimensions of Time | | | | Sat 4 Jun 2022 6:30pm EDT | | | | |
| The Search | | | | Sat 4 Jun 2022 7:00pm EDT | | | | |
| The Final Phase | | | | Sat 4 Jun 2022 7:30pm EDT | | | | |
| The Space Museum | | | | Mon 13 Jun 2022 8:00pm EDT | | | | |
| The Dimensions of Time | | | | Mon 13 Jun 2022 8:30pm EDT | | | | |
| The Search | | | | Tue 14 Jun 2022 8:00pm EDT | | | | |
| The Final Phase | | | | Tue 14 Jun 2022 8:30pm EDT | | | | |
| The Space Museum | | | | Sun 17 Jul 2022 6:00pm EDT | | | | |
| The Dimensions of Time | | | | Sun 17 Jul 2022 6:30pm EDT | | | | |
| The Search | | | | Sun 17 Jul 2022 7:00pm EDT | | | | |
| The Final Phase | | | | Sun 17 Jul 2022 7:30pm EDT | | | | |
| The Space Museum | | | | Sat 25 Jan 2025 ~9:30pm PST | | | | |
| The Dimensions of Time | | | | Sat 25 Jan 2025 ~10:10pm PST | | | | |
| The Search | | | | Sat 25 Jan 2025 ~10:45pm PST | | | | |
| The Final Phase | | | | Sat 25 Jan 2025 ~11:25pm PST | | | | |
