Loaded new firmware tonight - but before I did so checked the green flashing on TV3.
Could not see any evidence of it - but installed new firmware anyway to see if I could notice any change to other problems
No green flashes on TV3 (but seem to have vanished prior to firmware upgrade)
TV1 pixelisation - noticed it twice over the past hour - so its not as regular as before - but could be result of power reboot with firmware upgrade
Optical audio dropout - have been only watching the news on TV1 so far - but still regular audio drop outs on optical output. No audio drop outs on RCA outputs
Will test other channels and report back if anything of significance.
Looking forward to PVR functionality