TBH, it's best to regard any 'smart' features on a TV to be a free bonus that will be functionally limited and cease working within a year or so of purchase.
In the absence of open standards (which the broadcasters will resist in order to continue being able to advertise at you) these things require constant whack-a-mole maintenance, and the manufacturer simply doesn't care. They've sold the telly, job done. If it were a smartphone it wouldn't be such a problem, as you'd have dropped it down the loo or upgraded to a newer model by then, but TVs tend to hang around a bit longer...