Have you run out of TV series to tackle on  Prime Video ? Chances are, you're leaving some great options unwatched. You might know Amazon's  streaming service  best for shows like  The Boys  and Fallout -- and both are great -- but you shouldn't stop there if you have a subscription. The streamer is home to lesser-known series, like The Devil's Hour , and continues to add excellent options, such as the new college-set comedy Overcompensating. Note that Prime Video is ad-supported and charges an extra fee to remove commercials . Read on for this month's new releases and a collection of the best shows on the streamer. What's new on Prime Video in April Note:  These descriptions are taken from Prime Video press releases and have been lightly edited for style. April 5 Nippon Sangoku, season 1 premiere (2026- ):  Anime series. The story depicts the near future of Japan, where civilization has collapsed.…