Solved it! It was my HDMI switcher unit. I have an 8 in 2 out system and everything else I have plugged into it works fine. Just this box won't work. I plugged the box directly into my TV and it came on OK. So far.
I hope to check the channels now but I presume they have all gone after my meddling with it. Sorry to have hindered you.
As soon as you have everything setup run a settings bckup
