Not immediate trouble, but they have a long-term risk that could ruin them in 5-10 years, along with every other cable TV provider - cord cutting (and no, Internet isn't enough to replace it - 5G will see to that... Why do you think Comcast suddenly wants to get into wireless?). Comcast buying Fox and controlling more content is their hedge against that (aside from the international aspects of the deal). They think that if they can control more content, they can manage that risk. I don't think it's enough.