From the CBS terms of use:
"6. User Submissions
Some of the Services may allow you to submit or transmit audio, video, text, or other materials (collectively, “User Submissions”) to or through the Services. When you provide User Submissions, you grant to CBS Interactive, its parent, subsidiaries, affiliates, and partners a non-exclusive, worldwide, royalty-free, fully sublicenseable license to use, distribute, edit, display, archive, publish, sublicense, perform, reproduce, make available, transmit, broadcast, sell, translate, and create derivative works of those User Submissions, and your name, voice, likeness and other identifying information where part of a User Submission, in any form, media, software, or technology of any kind now known or developed in the future, including, without limitation, for developing, manufacturing, and marketing products. You hereby waive any moral rights you may have in your User Submissions."