Charter bought Time Warner Cable instead of Comcast. Don't worry. I'm sure soon enough they'll all merge to form a telecommunications MegaZord, instead it'll be a villian.
I don't know how AT&T keeps pulling this off. They've been sucking up companies since the mid '90s it seems and they don't show any sign of stopping. They're probably more massive now than they were when they were broken up the first time around.