The Buffalo Bills will be featured in the training camp version of "Hard Knocks" this year, while the NFC East will be the focus of the in-season edition of the show. This marks the first time the Bills will be featured on the long-running HBO series. The NFL changed the rules on which teams could be forced to appear on "Hard Knocks" during the offseason. The 2025 season will be pivotal for the Bills, while the NFC East teams will also be closely followed in the upcoming season.
Source: https://www.foxsports.com/stories/nfl/bills-nfc-east-featured-hard-knocks-2025-nfl-season