I keep forgetting that JH is blocked stateside. I don't think anyone can "unblock" it, but there are ways to make Youtube think your computer is *not* in the US.
I use a VPN when abroad - allows me to view blocked UK web sites such as iPlayer - it routes through a UK server. I'll let you know which one later as it has disappeared from my iPhone.
Thank you for the advice, but it's OK if I cannot view it. Right now I'm not very techy and I'm afraid I'll muck everything up if I'd download something and my rotten luck I'm sure 'something' would not work.