One of the downsides of Nord is that they are blocked by BBC Iplayer. If, like me, you connect to a UK server for privacy reasons you can no longer watch iplayer so you have to remember to turn off the VPN for BBC and turn it back on when you're done watching iplayer. Kinda annoying.
I thought they were blocked, but turns out my DNS config was wrong. You MUST use their own DNS servers pushed by the client; any custom DNS servers set in the preferences (or on the TAP adapter) will cause their method of iPlayer access to stop working.
(I used iPlayer through NordVPN yesterday evening)