The FCC Report and Order of June 1998 called for the availability of retail navigation devices and PODs in the July 2000 timeframe. In order to enable a set of services in a POD-based set top or digital TV, it is necessary to consider corresponding changes that must be made to the supporting digital network infrastructure. This paper examines those changes in the context of the feature set that has been defined by the OpenCable process for July of 2000. In addition, other system level considerations that affect the success of OpenCable systems are discussed.