Armchair Thriller is a British television drama series broadcast on ITV in 1978 and 1980 in two seasons. Taking the form of a sequence of unconnected serials, scripts for Armchair Thriller were adaptations of published novels and stories. Although not strictly a horror series, it did sometimes include supernatural elements. Armchair Thriller was mainly produced by Thames Television, but it included two serials from Southern Television. The format was of 25-minute episodes broadcast twice-weekly, usually on Tuesdays and Thursdays between 8 pm and 9 pm.