U can protect most of ur devices with delay plugs to protect it from the ON/OFF electricity fluctuations, it introduces 15 secs delay not to connect electricity to devices instantly after power restore, within this 15 secs if its cuts off again or volts drops below certain limit then no harm as it’s still powered OFF, cheap stuff works like magic, u can UPS protect ur Core1, I don’t believe protecting Apple TV with UPS as the cost will be 2 much for such a cheap device!
You should be worried more about your fridge and washing machines, these are the most affected ones with rapid ON/OFF
Am using these in my summer house, Sollatek Voltshield Automatic Voltage Switcher, EA1 is UPS protected thought, u can find alternatives in US for sure