Since purchasing my shield and becoming a plex pass member a couple months ago I have had an ongoing issue with a weak signal message when watching live TV. On several occasions the live TV screen freezes and becomes pixelated. I have tested the same channels using the live channels app and the HDhomerun app with no issues. I am currently on the 1.9 beta version and I am using two HDhomerun Connect tuners with the most current firmware. This seems to happen on any OTA channels that I receive. Any ideas on what the issue may be? is there a way to test the channel signal strength within Plex?