According to Official Guinness Records,
Five US TV shows have each earned a Metacritic rating of 99 out of 100: The Larry Sanders Show: Season 4 (1995), Murder One: Season 1 (1995), The Larry Sanders Show: Season 6 (1998), Breaking Bad: Season 5 (2012) and Rectify: Season 4 (2016). Visitors to the site can also log their ratings, and with a score of 9.6 from a possible 10, Breaking Bad: Season 5 tops the list as highest rated.Metacritic aggregates professional reviews and (where a metric is not provided) calculates a score out of 100. Only series with seven or more professional reviews qualify for the ranking.
For a complete list of 2012 records, please visit 2012 Guinness Records in United States.