What about me? I'm from Romania ... no Netflix in here ... I don't want to wait for the blu-ray release ...
CBS might retain rights to most regions, where Netflix has no presence, so you could get their shows through whatever channel you now get CBS shows.
Netflix is equivalent to HBO or Showtime, a subscription channel that makes and delivers shows. If it doesn't exist in your country, they can make deals with whatever system does exist to deliver the shows. If there's money to be made, someone will make it.
I also gotta wonder, what's the holdup to Netflix's streaming service being rolled out globally? DVDs/blu-rays etc require complex local setup to use the mail system, hire people to turn around the discs, etc, but streaming is the future anyway and eventually all physical media will be phased out.