Sorry if this sounds like silly question, or has already been answered before, but why do the buses have screens which show CCTV footage of the passengers? They used to display the time but they stopped that. Would it not be more useful to show next stop information, or go back to showing the time? Considering it's behind the driver, and everyone can already see the bus, isn't it pointless? Surely they should make use of the equipment they already have, and it seems a waste for the screen to always be on yet showing something unnecessary.