Also a quick reminder that you can try out a full 14-days of data in your Live TV grid guide by enabling this beta feature in the settings screen of the Tablo Roku Channel:
I got the Roku update yesterday (12/8/2019).
The Tablo Channel update failed 3 times. Each failure had the error message of “No internet connection”.
I know this was not the case as I had just finished watching a program on Netflix.
I did a System Reset to my Roku. After that, the new update completed without fail.
Hope this helps anyone that might be having difficulties updating the Tablo Channel on their Rokus.