"We're filming her show Nov. 8 and I think it airs Nov. 11," producer Scott Sanders told Playbill.com about the upcoming episode.

The TV show will feature a clip of the moment when the musical's cast learned about Winfrey's involvement with the musical — at a rehearsal where Winfrey made a surprise appearance.

"The only person I told was [director] Gary Griffin," Sanders revealed at a press preview where the company rehearses at the New 42nd Street Studios. "She took her jet in, we hid in the next room. And I came in and asked the cast to get on the stage and said 'Someone called me out of the blue about a week ago and said they really love the show and heard great things about it from friends and she wants to get involved and I want you to meet your newest producer.' That door opened, Oprah Winfrey walked in and the cast went insane."

Based on Alice Walker's book and the Steven Spielberg film of the same name, the new musical begins previews at the Broadway Theatre Nov. 1 toward an official opening Dec. 1.

Gary Griffin stages the work featuring a book by Pulitzer Prize-winner Marsha Norman ('night, Mother). Music is by pop songwriters Brenda Russell, Allee Willis and Stephen Bray. The Color Purple is "an inspiring family saga that tells the unforgettable story of a woman, who, through love, finds the strength to triumph over adversity and discover her unique voice in the world," according to the prodcuers. The show's score blends "gospel, jazz, ragtime and the blues."

Winfrey appeared as Sofia in the 1985 Spielberg film version opposite Whoopi Goldberg as Celie and Danny Glover as Albert. Walker adapted her novel for the screen.

Tickets for The Color Purple are currently on sale through (212) 239-6200 or via the link below. The Broadway Theatre Box Office, at 1681 Broadway, opened Oct. 3.

For more information and exclusive clips of songs provided by Playbill.com, visit the website at www.colorpurple.com.