HBO Max joins the crowded playing field of premium streaming services on May 27th, offering not just your favorite HBO programming, but new content like a Friends reunion, every DC movie, and season three of Search Party (that one's for me). But unlike a CBS All Access or Peacock, HBO Max isn't a premium spinoff of a regular, free TV network. HBO itself is already a premium cable service that offers premium streaming services HBO Now and HBO Go. And with all these versions of HBO floating around, we figured we should answer the questions that might be …