The inevitability of change and how that’s perceived by different generations is the central theme of N.C. Hunter’s 1951 play “A Picture of Autumn.” The Mint Theatre Company is now streaming a live recording of their 2013 production of this work. The story takes place at Wilton Manor, a secluded English country estate. Home to the Denham family since 1762, the lack of the proper funds has caused the house and surrounding grounds and outbuildings to fall into disrepair. In fact, the driveway of the manor house has become so overgrown, it will soon be impassable to cars. The estate is currently home to 70-something Sir Charles Denham (Jonathan Hogan), his wife Lady Margaret (Jill Tanner), and Charles’s older brother Harry (George Morfogen). Their only constant companion is Nurse (Barbara Eda-Young), the family’s sole full-time servant. Returning to the family home is Charles and Margaret’s eldest son Robert (Paul Niebanck). …