The TV will probably hold up just fine, other than the ads it will show if connected to the internet.
Samsung/LG appliances (washer/dryer, fridge, etc.) usually last 5 years or less. Whereas a quality appliance should last 10 years or more. My source on this is friends who work in the industry plus the experience of family members who bought LG/Samsung appliances anyway.
It's been 6months. When should I expect issues?