Board Thread:Questions and Answers/@comment-5018798-20160108203501/@comment-3428312-20160110043425

Actually, this is somewhat OTL. The Anglicans IIRC are currently in communion with the Constantinople, and have been for a while. So if you want a half-way Orthodox England, arguabably accomplished already.

As for a full Orthodox England, you'd have to go back at least as far as 1066 if not earlier.