Have a look at the install menu or setup on your TV.
You should be able to adjust video and audio tuner standard.
My TV purchased about 4 years ago simplify it by selecting the language you want (user interface), then the country you wish to receive TV signal in.
TV’s sold these days do NOT have differences for being sold in different EU countries other than prehaps the plug.
It just not cost effective to have multiple models anymore for different territories.
Mind you the quality of spanish TV is very poor (transmission quality).
I purchased a freeview box from Lidl (?25) and now receive cristal clear pictures, this is off course hocked up via scart socket, so I cant say I have used the TV tuner side of TV in many many months.
So unless you are really want to ditch your TV I would suggest you hang onto it.
Robin…