Most Popular Sci-Fi TV Shows — SeasonTracker Tracking Data October 2026
A Knight of the Seven Kingdoms sits at the top of SeasonTracker's sci-fi and fantasy rankings for the week of October 12, 2026, with 292 users tracking it. That figure comes out of a base of 2,403 SeasonTracker users who are currently tracking at least one of the 7,813 unique shows in the system, meaning roughly one in eight active trackers has the HBO series on their list.
The top four are unusually tight. Severance sits at 281, Silo at 279 and Fallout at 276, a spread of just 16 trackers between first and fourth place. Apple TV accounts for two of those four slots and four of the top fifteen overall, the strongest single-network showing in the category.
Here is the full top 15 by tracker count:
1. A Knight of the Seven Kingdoms (HBO), 292 trackers 2. Severance (Apple TV), 281 trackers 3. Silo (Apple TV), 279 trackers 4. Fallout (Prime Video), 276 trackers 5. House of the Dragon (HBO), 258 trackers 6. Pluribus (Apple TV), 236 trackers 7. Wednesday (Netflix), 199 trackers 8. The Boys (Prime Video), 146 trackers 9. Stranger Things (Netflix), 134 trackers 10. Lanterns (HBO), 129 trackers 11. The Lord of the Rings: The Rings of Power (Prime Video), 125 trackers 12. Black Mirror (Channel 4), 125 trackers 13. The Witcher (Netflix), 111 trackers 14. For All Mankind (Apple TV), 109 trackers 15. 3 Body Problem (Netflix), 107 trackers
The most notable movement this week comes from outside the top five. Lanterns added 9 trackers in seven days, the largest week-over-week gain on the list, and is up 50 trackers over the past month. That is by some distance the fastest growth rate in the category: no other show here gained more than 20 over the same period. At 129 trackers it now sits tenth, and at its current pace it is the clearest candidate to climb further.
Silo is the other show adding users at a meaningful clip, up 4 on the week and up 20 on the month. It is currently 2 trackers behind Severance, which was flat week-over-week, so the third and second positions are within a single week's movement of each other. House of the Dragon added 3 this week and 11 over the month, and The Witcher also added 3.
Most of the rest of the list is stable. Severance, Fallout, The Rings of Power and 3 Body Problem all held flat week-over-week, though each is up over the month. Black Mirror is the only show in the top 15 to lose a tracker this week, down 1, while still up 7 month-over-month.
Two shows in the list are marked as Ended: The Boys at 146 trackers and Stranger Things at 134. Both continue to add users at a slow rate, up 1 each this week, which suggests SeasonTracker users are still working through back catalogues rather than only tracking shows with upcoming episodes.
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