Premium is not “free with a bill.” It needs its own reason to exist.
A paid experience has a higher bar because the free alternative is already easy to reach. Simply opening another catalog is not enough. The upgrade needs to show up in the actual session.
That can begin with image quality. Higher-definition video gives the viewer more available detail. Full HD becomes more meaningful on larger screens. 4K pushes the potential visual ceiling higher again when the source material and device can support it.
But the value of Premium does not have to stop at resolution. Organization, playback, additional material, cleaner presentation and stronger convenience can all contribute to the feeling that this is a deliberately higher tier.
The important point is that Premium should feel like a choice made for quality, not a toll gate placed in front of ordinary browsing.