Comcast executives spent much of a post-earnings conference call on the biggest news of the last few months, an upcoming cable spinoff with President Mike Cavanagh calling a new company comprised of most NBCUniversal cable networks as “a free-standing, strong collection of businesses with lots of cash flow generation capability for many years to come, good market position and great focus.” It’s led by Mark Lazarus with the roster of executives fleshed out earlier this month. But many details are still to c ...