[noggin]

Sorry I find the TVheadend UI rather confusing is there a particular tab where I can see that info?

I tried looking at VLC stats but no dropped packets that I saw in 5min test but maybe thats something different.   

Yes - posted here https://forum.kodi.tv/showthread.php?tid...pid2788370 (A couple of posts higher)   

Thanks, i've started to see again Followed a stream for about 5mins and got 12 "continuity errors". Any ideas if that's normally to be expected or if that could be the cause of the green blocks?

SNR 24ish and Signal strength -37 

 
I don't know if the SNR and Strength are accurate (some drivers don't implement that so well - but as Sony wrote the Pi uHAT drivers I suspect they are good) but what are the other error figures in the streams page?

Mine all sit on 0 pretty much all the time - so that suggests your signal isn't error-free - which means that there are errors in the MPEG2 transport stream - which will probably mean the video and audio streams have errors in them. Different platforms will conceal or show these errors in different ways.  

When you see glitches - are these around the time the error count changes?