PRI's The World Published by PRI's The World London Tube riders pay to replace ads with cats, set example for rest of world Listen Queue Download this audio Want to embed this player? Use the code below. More info. <iframe frameborder="0" scrolling="no" height="130" width="100%" src="https://www.wnyc.org/widgets/ondemand_player/wnyc/#file=/audio/json/664009/&share=1"></iframe> Share on Facebook Share on Twitter Email a Friend The Citizens Advertising Takeover Service (CATS) has taken over the Clapham Common subway station. This is what Kickstarter was made for, isn't it?