tv props

Not that television is supposed to be real or anything but I can't help but notice how light the groceries are. When TV characters buy groceries, they always need paper towels and potato chips and the like, yet never shop for eggs and other things that are fragile and/or heavy. And whenever they are drinking from soda or beer cans, don't the cans look empty? Maybe I need to expand my horizons and watch more television to see if I'm wrong (perhaps I don't watch enough different shows).