Wear one to the movies, for example, and you could use an app on your phone to program it to play along, dispensing discreet scents at key moments. The ultimate device is nowhere near ready, Duerinck acknowledges – its current size and battery life are hurdles, as is the quality of the scent and the projection. But he remains optimistic.
— Smellovision, still in the works after all these years. Read more in The people who want to send smells through your TV at BBC.