Bob Costas guest stars on an all-new episode of the NBC comedy GO ON entitled 'Win At All Costas.' In the episode, Ryan (Matthew Perry) receives an invitation from Bob Costas, his hero, to take part on his new TV show while Fausta (Tonita Castro) invites everyone in the group to her niece's Quincenierra - everyone except Anne (Julie White). Get a sneak peek below!
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