“Teen Titans Go!” has been reported having Season 3 uploaded backwards on Netflix, also it’s only streaming in Canada (thanks for the assist, Anon!). Fortunately, we’ve found all the episodes streaming legally on the Cartoon Network site here:
You can also stream it for free with an Xfinity account, though we urge you to cut the cord if you haven’t yet. You don’t even need cable for this show 🙂
Currently, you can only get Season 4 paid on Amazon, though we expect later it will be added to Netflix and the Cartoon Network site.