20th Century Flicks were an established video rental shop up in Clifton, conveniently next to the University of Bristol Student Union, when I moved to Hotwells in 1999. They moved to Christmas Steps a few years back, and are still, amazingly, in business.
I'd guess they survive by having an immense stock of films (20,000 available for hire), great expertise, and a high-density local student population.
GPS Coordinates:
51.45614, -2.59670
Location: City Centre