Elstree Calling

Elstree Calling 1930 is a film directed by Andre Charlot, Jack Hulbert, Paul Murray, and Alfred Hitchcock at Elstree Studios.

Hitchcocks contribution was the comic linking segments about a man trying to tune in the revue on his television set, but always failing to get the picture for long because of his needless tinkering. In the UK, John Logie Bairds work in mechanical television in the 1920s made television a topical subject at the time.Imitating the lavish use of Technicolor by Hollywood studios at that time, two sequences in the film were artificially coloured by the Pathcolor process, which used stencils to tint selected areas of the blackandwhite prints. ........

Source: Wikipedia