You have to go to the Apple TV Menu, select "Users and Accounts" then scroll down to Apple TV Accounts, you'll see TV Provider > Telus. You select that and change the "Allow TV Provider to Access" for Pik TV to OFF. That fixed it for me.
Now I am dealing with a poor Pik TV app that won't let me scroll down to the program listing under the guide ... it only goes down the the date line 😞 -- forcing me to reset my Apple TV to fix it. No other apps do this... Prime Video and Netflix all work fine.