Not for the first time the streaming quality for Sky F1 coverage was falling from 4830 to 90 every couple of minutes this afternoon. I have a Samsung SMART TV and nothing wrong with my wi-fi set-up (all other wi-fi apps were working fine), nor broadband speed. Sometimes the problem cleared itself within 10 secs., most times I had to switch channel and back again to clear it. I've tried to contact NOW's online customer chat service ... but no response, so have left a complaint.
From the other comments that have been left, it seems that this is a whole bigger issue for NOW TV. Hopefully they will resolve it soon ... like in time for us to enjoy tomorrow's race buffer-free!!!