The basic principles of lighting are the same. In TV and motion picture work you are generally lighting much larger areas. Back in the days of lighting for film, the film speeds were relatively low and sets required a considerable amount of light. Today's TV studios and movie sets that use digital equipment can light a set with lower levels. There is still a lot of light required but not as much as in the old film days.
One of the difficulties of lighting a TV or movie set is that the camera rarely remains in one place. With the use of "Steady Cams" you see lots of hand-held shots being used. So the lighting has to accomodate this movement through a scene. Some of the better examples of pure set lighting, IMHO, can be found in the old black and white films.
The bottom line: more lights on the sets, bigger lights, use of special screens to control contrast and light falling on the set, more varied conditions with which to deal in outdoor settings and difficulties in lighting large structures or rooms, particularly exteriors at night. Hope that answers your question.
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Sincerely,
Lee -clockdoc-
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