“The Valley” Season 3 finale is scheduled to premiere tonight. Fans can watch the finale for free online by using the free trial offered by DIRECTV. If you are unable to watch the finale tonight, then you can stream the episode on Peacock tomorrow. Can you watch ‘The Valley’ Season 3 finale for free tonight? Fans of “They Valley” can watch the season 3 finale for free tonight by using DIRECTV’s free trial.