It used to mean going out to dinner and to a movie afterwards. Now Dinner and a Movie is sitting at home watching a movie broken up by not just commercials, but by two commentators/comics and a chef cooking up food to match the "theme" of the movie.
Why would people watch this? The movies on commerical television are cut to pieces already as they are edited for TV and no longer in the form the writers and director intended for the story. Does anyone really cook the foods they throw together? Do you think the jokes are really funny?
Tell me what you think of this phenomenon please.