Techniscope

Techniscope was the Technicolor 35mm film format used to capture and distribute Dr. Who and the Daleks and Daleks' Invasion Earth 2150 A.D.. These were the only two Doctor Who stories recorded in the format, which was somewhat popular in Europe in the 1960s. Its positive (or projection) aspect ratio was 2.39. This accounts for the two Dalek movies being "shorter" and "wider" — or "more widescreen" — than BBC Wales Doctor Who, whose aspect ratio is 1.78.