while discussing Uncle Albert's history of falling down numerous holes, Del Boy infers that the only hole Albert has not fallen down is "the black one in Calcutta". In an episode of The Andy Griffith Show, S. 6 Ep. 11 "The Cannon", Deputy Warren is placed in charge of security at the Mayberry Founders Day ceremony and he becomes obsessed with the town decorative cannon. He peers into the fuse breach and claims "It is darker than the Hole of Calcutta in there". In an episode of The L Word, Alice refers to the bad vibes in the coffee shop as "The Black Hole of Calcutta". In an episode of British television series Yes, Minister, the permanent secretary refers to a packed train compartment as the Black Hole of Calcutta. In an episode of Have Gun, Will Travel, S. 2 Ep. 10 "The Lady", Paladin warns a British woman of the danger of an imminent Comanche attack by reminding her of indigenous reprisals in India, including "the Khyber Pass, the Sepoy Mutiny, and the Black Hole of Calcutta". In an episode of the British comedy Peep Show, the character Mark says "The more, the merrier, they said as another poor soul was crammed into the Black Hole of Calcutta." Film The Black Hole of Calcutta is referenced early in the film Albert R.N., a 1953 British film dealing with a German prisoner-of-war camp for allied naval officers. In the 1963 episode of Steptoe and Son entitled ‘The Bath’, when Harold Steptoe displaces his father from his bedroom in order to install a bathroom, Albert Steptoe angrily describes his new ‘bedroom’ - the cupboard under the stairs - as being “…like the Black 'Ole of Calcutta!” There's also a reference in the 1987 film Hiding Out, where the protagonist's aunt criticizes her teenage son's messy room by comparing it to the Black Hole. It is also referenced in the 1991 film The Addams Family as one of the locations visited by Gomez and Morticia Addams during their second honeymoon. Astronomy According to Hong-Yee Chiu, an astrophysicist at NASA, the Black Hole of Calcutta was the inspiration for the term black hole referring to objects resulting from the gravitational collapse of very heavy stars. He recalled hearing physicist Robert Dicke in the early 1960s compare such gravitationally collapsed objects to the prison. Prison reform A minority opinion in the August 1910 report