How to get freesat on new Samsung TV

I have a new tv being delivered today that has freesat instead of freeview. I don’t have sky tv so will I still be able to get the free channels? The guy in John Lewis never asked if we had a satellite dish.

We used to have sky but cancelled it at least five years ago. I do still have the old sky box and the dish is still up. Would this enable me to get freesat?