Try logging out of your TLC GO channel app. I don't have this so I can't tell where to find this, but look in Settings, Account, Options or similar options.
Once logged out, log back in again using your Dish credentials.
Roku Community Streaming Expert
I am not a Roku employee, only a user like you. Please, no support questions via private message -- post them publicly to the Community where others may benefit as well.
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Ultra 4800 | Streaming Stick 4K+ 3821 | TCL Roku TV 43S245/C107X