I resorted to the telly after 11am.
Why not use the telly as first resort? 
Maybe they find the picture too big to take in the whole scene easily without turning their head from side to side?
Re the beeb site itself, half the sections on the Home Page disappeared, from both my setup and the bottom of the page from which one can add sections. Identical effect on my other machine which unusually has been on for a few days, with a different setup, so that ruled out a problem this end.
Fine again now, as others have said. iPlayer snippets were working at 5pm'ish.
I wonder if it was that poster causing the problem, and when they went to the telly instead the website recovered

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My broadband basic info/help site - www.robertos.me.uk
My domains,website and mail hosting - Tsohost.
Internet connection - IDNet Home Starter Fibre.
Live BQM.
"Where talent is a dwarf, self-esteem is a giant." - Jean-Antoine Petit-Senn.