So I tried to use TV Anywhere on my laptop, previously used for this purpose, and it says I already have my two devices allocated. Er, yes. My laptop is one of those devices. To get it to work, I had to delete "HP laptop" and then add my current device, my HP laptop, and called it "HP laptop".
Edit: new operating system (Windows 10) was probably the cause. Can't seem to delete this post so please ignore it. Thanks.