*On the heels of news this morning that Oprah Winfrey will host a new one-hour show on her new Oprah Winfrey Network titled “Oprah’s Next Chapter,” the mogul made it official later Thursday with more details about the program, and announced four other shows that are set to debut when the cable channel launches on Jan. 1, 2011.

Speaking to advertisers at the annual upfronts in New York, Winfrey described “Oprah’s Next Chapter” as a show that will have “more riveting conversations with the people we all want to hear from, in some very unexpected places.”

Other OWN shows announced Thursday were “Visionaries: Inside the Creative Mind”; “Your Own Show: Oprah’s Search for the Next TV Star”; “Gayle King Live!”, and “Why Not? With Shania Twain.”

“My vision for OWN is to create a network that inspires our viewers and makes them want to be who they are on their best day,” Winfrey said. Added Christina Norman, CEO of OWN, “We want to provide our audience with the tools to awaken, become more alive, and connect to what really matters to them in a fun, engaging, and entertaining way.”

Other programs that have already been announced for OWN’s launch in January include “Breaking Down the Bars” (a one-hour show that goes inside prison walls); “In the Bedroom with Dr. Laura Berman” (a show featuring a sex therapist); “Inside with Lisa Ling” (an investigative series); and “Searching” (a show that attempts to reunite long-lost friends and family members).