CBS Corporation President and CEO Leslie Moonves announced today that Nancy Tellem, President of the Network Television Entertainment Group, will transition to a new role with the Company beginning January 2010. As Senior Advisor to the CEO, Tellem will step back from the day-to-day operations and dedicate her efforts to exploring business and strategic opportunities – both domestic and global – involving content partnerships, new production models, developing technologies and emerging media. In addition to her new responsibilities, she will also continue to oversee CBS's interest in The CW Television Network, which is a 50/50 joint venture with Warner Bros. Entertainment. "This is a new role in a fast-changing landscape for a very gifted executive," said Moonves. "Nancy has been my friend, colleague and trusted advisor for more than 20 years. She has been instrumental in the growth and success of CBS's television business, helping to lead our network entertainment and television studio operations to great heights. She has been looking for a new challenge and is very passionate about this transformative time in our business.