Most shows airing Wednesday showed showed similar audience drops relative to last week, including the "Glee" lead-in, "So You Think You Can Dance." The pair of FOX shows allowed the network to tie CBS for Wednesday's 18-49 demo lead.

In other ratings news, "Glee" continues to gain substantial viewership when DVR ratings are factored in, according to tvbythenumbers.com.  The  Sept. 23 episode jumped from a 3.1 to 3.9 in the 18-49 demo, while the Sept. 30 episode went up from a 3.3 to a 4.2 for "live" + 7-day DVR viewing.

This week's episode, title "Mash-Up," featured performances of the songs "Bust a Move," "Thong Song," "What a Girl Wants," "Sweet Caroline," and "I Could Have Danced All Night."

"Glee" will be pre-empted the next two weeks for the World Series, returning Nov. 11 with an episode featuring the song "Defying Gravity" from the blockbuster musical Wicked.