They took the YouTube video down, so I couldn't see the TWA.
I didn't believe Oprah's hair wasn't real until Perez Hilton or someone showed a close up of her head on a very bad hair day, and I saw tracks, so I don't think she's wearing a lace front. Then again, consider the source and photoshop.
If she's wearing real hair that didn't happen to grow out of her scalp, they handled the transition from short to long very, very well because I honestly thought she'd grown it out.
She may go short or natural once her show wraps, if she decides not to continue to be on the air. *shrug*