Stream Mariners Games Live!

3RTV customers can now watch Seattle Mariners games on Root Sports live on your desktop or laptop computer FREE as part of our WatchTVEverywhere service! Games not yet available on mobile devices such as phones or tablets. If your 3RTV subscription includes Root Sports, go to and click on the Root Sports icon. Once there, sign in using your 3 Rivers WatchTVEverywhere account credentials and you’ll be able to see Mariners games LIVE in full HD! If you haven’t set up your FREE WatchTVEverywhere account, you’ll need to do that first—for more information, click here.