Movie and television rights are tied up in a huge, byzantine mess from the days when distributing media internationally was excessively prohibitive for the studios. Theatre distribution and television broadcast was, and is, usually done by different companies in each and every country. Internet rights are generally included with those rights, otherwise what's the point?
For Canada alone, all the distribution rights for practically everything are owned by completely different companies than they are in the US. All of NBC's shows, for example, may be split up amongst three different networks up here, and each has to be negotiated individually. Want SNL? Talk to Shaw (Global). If Shaw doesn't wanna play ball, then no SNL. Community? Gotta ask Rogers (Citytv). Not to mention the fact that rights-holders for those shows, which tend to be big cable/telecom companies, are starting their own Netflix-style services, so Netlix has zero chance of getting them here anyway.
Until the day when studios can bypass television networks completely, and distribute directly to theatres on their own, it's going to continue to be a massive mess.