Discovery Communications Inc. is taking majority control of OWN, the cable network it co-owns with Oprah Winfrey. Oprah Winfrey will remain CEO of OWN for the next eight years after signing a new deal with its parent company, Discovery Communications. In addition to locking in O through at least 2025, Discovery also shelled out $70 million to acquire an additional 24.5 percent stake in OWN from Winfrey’s Harpo.