Help with swapping leads to watch terrestrial tv?

Hello. My elderley father is snowed in and having problem with his tv sky digibox. There is no signal at all due to the snow. He wants to swap some the leads to be able to watch terrestrial tv intil the sky's reception hopefully comes back but doesnt know which leads are which as he says there are loads of leads. He has a panasonic tv. Any help would be appreciated. Thank you. Mandy