you ever think of letting us just by movies channels on demand instead of live

why can we not buy on demand  movies channels and what I mean is get HBO or Starz movies on demand and not take the live channels for a cheaper  why out anther words I can just get hbo on demand so I can watch a series I do not know if this makes any sense but you pat 15,99 for hbo but if we could just use hbo on demand  maybe we could get hbo at a discount