This week’s new TV-on-DVD & Blu-ray releases include … American Experience: The Circus (DVD) Doctor Who: Shada (DVD) Masterpiece: Poldark: Season 4 (Blu-ray & DVD) Shakespeare Uncovered: Series 3 (DVD) Sherlock: Season One (4K Ultra HD) Silent Witness: Season Six (DVD) Single-Handed: Complete Collection (DVD) Story of the Royals (DVD) Succession: Season 1 (Blu-ray+Digital & …