You don't necessarily need a new TV. You can always get a much cheaper streaming device (Roku or otherwise) and connect it to the TV. Have the TV power on to the input of the streaming device and you won't need to use the TV's apps.
Roku Community Streaming Expert
Help others find this answer and click "Accept as Solution."
If you appreciate my answer, maybe give me a Kudo.
I am not a Roku employee.