The Exorcist (1973) BBC3, 10pm

Although almost 50 years old, William Friedkin’s much-admired Oscarwinning horror has lost none of its power. When 12-year-old Regan (Linda Blair, above) suddenly begins to exhibit unusual behaviour, her distraught mother (Ellen Burstyn) is forced to consider that the girl may be possessed by a demonic entity. ★★★★★