So how did "Big Brother" fare versus previous episodes?

Ranking the episodes by number of viewers, "Big Brother" lands as the fourth least-viewed episode so far in Glee's 59 episode run.

Figures represent viewers in millions:

1. Hairography 6.17 [S]
2. Preggers 6.64 [S]
3. Acafellas 6.69 [S]
4. Big Brother 6.76 [S]

"Big Brother" also marks the third season's lowest point, with the next lowest-viewed episode coming in at 6.91 million ("The First Time") [S].