Why does Freesat have On Demand players that need a paid subscription?

Why does Freesat have On Demand players that need a paid subscription?

We’re always looking to add new content partners to Freesat (especially when they’re free!) to offer our customers a single platform where they can access all their favourite On Demand content. Where a service offers great programmes at a cost, we’d rather give customers the choice to watch them if they’d like to.

See also:

What On Demand players do we have