It looks as if 25 will be Oprah Winfrey’s lucky number.

In a meeting with her staff members today, Winfrey officially announced that her daytime talk show will turn off the lights in two years. That same news will be delivered on her program tomorrow. The 2011 end date means The Oprah Winfrey Show will close after celebrating its silver anniversary.

This decision comes after weeks of increased speculation about her future. It has been rumored for some time that Oprah would simply take the show out of syndication and bring in to OWN: The Oprah Winfrey Network.

The 55-year-old told the audience at today’s taping that her last air date would be September 9, 2011—the final day of her contract (and strangely enough, just two days before the 10-year anniversary of the 9/11 attacks).

CBS TV Distribution released the following statement in response to the announcement:

“We have the greatest respect for Oprah and wish her nothing but the best in her future endeavors. We know that anything she turns her hand to will be a great success. We look forward to working with her for the next several years, and hopefully afterwards as well.”

It’s believed Winfrey will last record a broadcast around March 27, 2011.