Comcast challenges Murdoch with $31 billion offer to buy Sky Comcast challenges Murdoch with $31 billion offer to buy SkyReuters Comcast Makes $30.9 Billion Offer for Sky, Challenging FoxWall Street Journal Rupert Murdoch’s Sky bid challenged by ComcastBBC News Comcast Rivals 21st Century Fox With $31B Bid for SkyHollywood Reporter Full coverage