Super Bowl ratings: Game fails to attract more than 100 million viewers
2021 Super Bowl ratings: 96.4 million viewers, down from 2020 - Los Angeles Times
TV audience for NFL kickoff highest in six years - Los Angeles Times
Super Bowl Audience Rises To 102 Million Multi-Platform Viewers – Deadline
Super Bowl ratings decrease in 2021 on CBS despite record streaming
Super Bowl 2021 Draws Just 96.4 Million Viewers, Down 8% From Last Year
NBC Ups Super Bowl Ante, Floats $6M For 30-Second Ad: Report 06/17/2021
Super Bowl LV Draws 96.4 Million Multiplatform Viewers, Lowest Since 2007 - TheWrap
Super Bowl LVI Moves Full Steam Ahead In LA As Covid Explodes - Bloomberg