BBC I player won't load?

Hi hope this is a simple one I have a jvc 48 inch uhd tv all linked to the Wi Fi no problem plays you tube and everything all linked to sky box fine, so here comes the problem when I go onto the bbc I player app it says tv has no channels listed and have to be connected to Internet,do you have to link it to a digital areal or something it also won't let me use free view either, thanks in advance