Most in-demand debut for a TV show
- Who
- IT: Welcome to Derry
- What
- 88.3 total number
- Where
- Not Applicable (Not Applicable)
- When
- 09 January 2026
HBO's IT: Welcome to Derry (USA; 2025–present) was the most popular debut TV series in 2025 according to data-science firm Parrot Analytics, with a global demand rating 88.3 times greater than that of the average TV show. The valuation is based on demand in the 30 days after the show's premiere on 26 October 2025.
IT: Welcome to Derry is a supernatural horror prequel set in 1962, exploring the sinister origins of Pennywise as a young family arrives in Derry, Maine, just as a child disappears. The series expands the mythology of Stephen King’s novel It, delving into the town’s dark history and the malevolent force stalking its residents.