TV Usage During Power Outage ?

Would like to hear about options to have TV available during power outages. Thinking about outages for a day or two.

For example, would a portable power station be a way to power TV and cable TV modem and cable TV box connected to TV?

Anyone try those portable TVs that receive TV stations with antenna? (understand won't get cable TV stations)

Any other options?

Greatly appreciate any and all input.

Thanks,

Mark