The series finale of "Cheers" was watched by 84 million people, which is more than double the all-time highest rated episode of "American Idol". Sitcom "Sports Night" was canceled after two seasons on ABC in the '90s because it only averaged 11.5...
During the season finale of "Saturday Night Live" Google premiered its new ad for Chrome and its other services - heavily favoring YouTube - starring Lady Gaga. Using the SNL finale was a good way to reach out to a strong part of their user base.
Bearing in mind that the three episodes before the Lost finale had yielded a 27% stronger brand recall compared to other primetime programs, the final episode literally broke a record 51% higher brand recall.