My daughter and I record Flash and Arrow on the Tablo for new episodes. It worked great at first but since the second half of the season started the records pixalate, freeze (sound goes on) and is just really bad. Shutting down the Tablo and restarting it helps clear some of that up but it is still bad.
I was recording at the 1080 60fps 10mbps. I droped it today to the 1080 8mbps to see if that will make a different.
The table is connected using the RJ45 connector (not wifi).
90+% of the time this is caused by poor reception. Reception isn’t a constant and there can be things that interfere with antenna signal from the outside, to the antenna, to the coax, etc…
Now… you said, that your playback of a given recorded show isn’t constant though? Right? That is sometimes when you play back it plays smoothly through the exact same part that other times is “pixelated”? If this is the case, you probably should start a ticket with support. That would be a very odd problem indeed.