Comcast is few-to-many model, Facebook is many-to-many. A few content producers create the content that Comcast could potentially carry. Comcast selects what t

Comcast is few-to-many model, Facebook is many-to-many. A few content producers create the content that Comcast could potentially carry. Comcast selects what they want to provide to their many customers. Comcast has never marketed themselves as a place where anyone can have their content provided to subscribers. Facebook has, in fact that is the essence of what they do.