Our smart TV that we had in guest room is no longer working but local TV shop next to Planet Fitness mentioned it only needs a main board replaced. TV comes with a remote controler and the estimate for main board was $50-100 to replace online at Shop Jimmy. One does need to open up TV to see the exact part # and I have not done so.
Reach out if your able to come pick up TV today and I can help you load the TV as well if needed. We currently have it in front Living room to make easier to load.