In message , at 16:01:24 on Tue,
9 Dec 2008, Ian Jelf remarked:
Brightly lit in unlikely circumstances is a particular failing of
television and film production generally. The problem is, if you
recreated total darkness, it's not terribly good from a story-telling
point of view.

Nor is it very good for the overtime bills, people falling over one
another and so on. I'm told that most "night" scenes are actually shot
in daylight with filters on the camera.
--
Roland Perry