The major exception would be direct lightning strikes, but considering that a single lightning bolt carries upwards of 1 billion volts, no surge protector will save your TV from one of those.

The majority of surge protectors can’t handle anything this large, so don’t rely on them during lightning storms—the best way to protect from this type of surge is to unplug your sensitive ...

Because most TVs are now smart TVs, it's safest to plug your TV into a surge protector even if you're not sure what type of TV you have. How many surge protectors should be plugged into one outlet?