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# NFL says Nielsen’s mid-season methodology shift broke ad-deal trust
- URL: https://fabric-media.ghost.io/nfl-says-nielsens-mid-season-methodology-shift-broke-ad-deal-trust/
- Published: 2026-08-25T14:29:50.000Z
- Updated: 2026-09-01T21:35:49.000Z
- Description: The NFL’s measurement chief says Nielsen rushed methodology changes mid-season, disrupting ratings the league and advertisers rely on to price billions in ad deals. He points to integrated weighting and panel-versus-big-data tradeoffs as core, unresolved problems.
- Author: Fabric.Media Editorial
- Tags: Measurement, Paul Ballew

**Why it matters.** Advertisers and the NFL now have grounds to push for alternative or supplementary currencies rather than accept Nielsen’s numbers as settled fact.

*Signal from* [*Next in Media (podcast)*](https://mikeshields.substack.com/) *·* [*Paul Ballew)*](https://fabric-media.ghost.io/tag/by-paul-ballew/) *·* [*read the original*](https://next-in-media.simplecast.com/episodes/why-the-nfl-is-rejecting-tvs-biggest-rating-system-%5F%5FCSx25P?ref=fabric-media.ghost.io)*.*