Thanks for reaching out here in the Community!
Does the issue only occur on the channels you mentioned or all channels installed on your Roku TV? If it does happen regardless of what app you use, we suggest contacting the TV manufacturer to report the issue and get help. Each Roku TV manufacturer provides direct support and warranty services for their products running the Roku OS.
You can contact TCL Support here.
Keep us posted.
All the best,
Roku Forum Moderator