According to early numbers from Nielsen, Simon Cowell's singing competition drew a total of just more than six million viewers and generated a rating of 1.9 in the advertiser-desired 18-49-year-old demographic for its lowest results ever.
The key demo rating was down 5% from last Thursday. Fox expects the 18-49 rating to grow 20% to 25% after seven days.
That comes after the series' opened last week with low numbers compared with last year.
The "MSQ" telecast drew 5.42 million viewers and rose 27% over last Thursday to a 1.4 rating as 25-year-old Columbia Law School graduate Andrew Kravis won $2.6 million, which is the largest grand prize ever won on a game show, according to NBC.
NBC's numbers are likely to change because of local NFL telecasts.
With little competition, CBS was the highest-rated broadcast network Thursday night, with a 1.6 rating and an average audience of 6.72 million for its slate of comedy reruns.
A 9 p.m. encore of CBS' "The Big Bang Theory," which starts its new season next week, was the highest rated show on the major networks.
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