Hello Ratty,
It all depends on where you are staying. In many places the caravan/house aerial may be fine for free view.- but you might need to retune the set. But in other areas particularly remote sites, you may you cannot get a strong freeview signal, in which case the satellite will be the way to go or find something else to do π
Edit ; I only referring to UK sites, if you travel abroad you will need to go sateilte.