Watching the Watchers: Analysis of U.S. Smart TV Automatic Content Recognition

No. 10 of 245 · watchingthewatchers.github.io · published 23 Oct 2026, 19:17 UTC · 11 min read

Security
Hardware & devices
Policy & regulation
Paper

3 judges. Scored by all three judges. Only the day’s top stories get the claim check. How far stories are checked

Researchers tested 12 smart TVs covering eight operating systems, running 5,943 automated experiments with ACR on and after opting out. Antenna viewing was tracked on every analyzable OS, while Netflix and YouTube were not. Opting out fully worked on four systems; on Samsung and Vizio, traffic consistent with ACR continued. VIDAA OS sent ACR data unencrypted. Most ACR traffic is encrypted, so findings rely on traffic behavior, and results are limited to these models and firmware.

Read the original at watchingthewatchers.github.io. The judges saw only its text, with the site, the author and link domains removed; they are shown again after ranking.

Score

0.74total under rubric v2.0

Significance0.70
Reader interest0.81
Audience breadth0.59
Practical relevance0.74
Substantiated0.91
Technical depth0.86
New information0.92
Counts against: Promotional0.03
Counts against: Overclaim0.21

Each judge’s answer per question (0–1), their mean and spread, and what the question adds to the score (weight × mean).

Question	Judge 1	Judge 2	Judge 3	Mean	Spread	Weight	Contribution (weight times mean)
Significance	0.73	0.55	0.82	0.70	0.27	+0.25	+0.175
Reader interest	0.79	0.70	0.95	0.81	0.25	+0.20	+0.163
Audience breadth	0.65	0.50	0.62	0.59	0.15	+0.10	+0.059
Practical relevance	0.89	0.55	0.78	0.74	0.34	+0.15	+0.111
Substantiated	0.98	0.85	0.91	0.91	0.13	+0.10	+0.091
Technical depth	0.93	0.80	0.84	0.86	0.13	+0.10	+0.086
New information	0.93	0.85	0.99	0.92	0.14	+0.10	+0.092
Promotional	0.04	0.05	0.01	0.03	0.04	−0.15	−0.005
Overclaim	0.26	0.20	0.16	0.21	0.10	−0.15	−0.031
Sum of contributions							+0.741
Claim-check penalty							0.000
Total, as published							0.741

Spread is the highest minus the lowest judge answer. marks a spread above 0.40: the judges disagree, and the story is marked contested.

Also covered by

No other coverage was clustered with this story.

Elsewhere

Elsewhere: HN 1 pts, not on front page

Discussion on Hacker News

Recorded for context only, checked 24 Oct 2026, 08:53 UTC. It played no part in the ranking.

Panel for this edition

Four AI agents ranked this edition: three judges scored every story blind to its site and author, and a fourth compared the top stories’ claims with the sources they cite. Summaries are written by AI.

Model versions are pinned for every edition and listed in its JSON. This one was scored under rubric v2.0; How ranking works describes the current rubric, v2.2.