Ratings
How many episodes accounted for the season during Glees first season?
Glee (TV series)
The pilot episode of "Glee" averaged 9.62 million viewers, and the following eleven episodes attained between 6.10 and 7.65 million. The mid-season finale was watched by 8.13 million viewers, with the show returning in April 2010 to a season high of 13.66 million viewers. The following six episodes attained between 11.49 and 12.98 million viewers, falling to 8.99 million for the penultimate episode "Funk". Viewing figures rose to 11.07 million viewers for the season finale, giving "Glee" the highest finale rating for a new show in the 2009–10 television season. Only the first twenty episodes of the first season were accounted for when calculating the season average due to the final two episodes airing outside the traditional sweeps period. On February 6, 2011, after the Super Bowl, "Glee" received its highest ever ratings, with over 26.8 million tuning in to see the special episode, with a peak of 39.5 million. In 2011, "Glee" generated $2 million advertising revenue per half hour. In 2012, the show was the fourth-highest revenue earning show of the year, with US$2.83 million ad revenue per half hour, behind "Two and a Half Men", "The X Factor (U.S.)" and "American Idol".