Yes, it's illegal, so it's exactly what I didn't do yesterday, when I heard about the extended content on bbc ;) It's also the reason why I cannot reccomend NordVPN as probably one of the best VPNs out there. It's not like I've been using it for a year now, to cheat Netflix that I live in the US or UK, and not in central Europe ;)
I watch them on BBC iplayer. It's a convoluted process of getting a VPN, switching DNS by using a service like Unlocator and then subscribing to the BBC and downloading iplayer. BUT it works. Downloads are temporary, and BBC uses some kind of DASH and protected video that I haven't figured out how to download or convert .
Yasssss she comes holding a sword looking fierce as shit. ⚔️