Do you have an aerial plugged in? I think the service combines both live TV from an aerial and through Freely in the EPG so you don’t notice any difference.
My last 3 have been Samsung, Sony and LG. The best of the three was the LG. Still going strong actually even though not my main TV. I’m always surprised at how modern TVs seem to have software that seems to feel about a decade old. There’s nothing more annoying than switching it on and not having an instant picture, or having to cancel a load of slow sub menus. Even my relatively new Samsung feels slow and buggy.