Just installed Youtube Anti Adblock Bypasser. I followed your advice to another user and I used it with uBlock Origin - it seemes to be working Very Well.
I have tried 'Undetectable Adblockers' like Fadblock but they should be called Ad Skippers rather than blockers. I tried an extension which disables Java Script but that didn't work too well either.
Youtube Anti Adblock Bypasser definitely seems to have done the trick - Thank you.
ps. I will let you know how it's working after I've used it a little longer.

After using for couple of days, it is still working Brilliantly!
There has been No problems with viewing in Full Screen either - Absolutely Superb!!