I select the channel, not the show and this happens intermittently. I have also selected the show and the channel keeps playing even when the show ends - it never stops at the end of a show.
I have a Tablo Quad with an external 1TB disk drive.
The Tablo is running version 2.2.30
It is connected via WiFi to my Google Nest Wifi network.
My TV is a Samsung UN60JS7000 Version 1550 Firmware.
And note that when it freezes, I have to return to the channel guide and then go back into the show/channel I am watching - sometimes at this point I get an “Unknown Error” popup message on the screen. Sometimes I have to go to the the channel guide and select the show multiple times before the “Unknown Error” does not occur and then I can watch the show.