In certain embodiments, a digital television receiver method for receiving non-real time (NRT) content involves receiving a transport stream containing an Internet Protocol (IP) stream of packets containing non-real time content, NRT service metadata and NRT content metadata; a demultiplexer that demultiplexes the IP stream of packets to produce: NRT content, NRT service metadata, and NRT content metadata; an NRT metadata parser that produces NRT service metadata and NRT content metadata; and where the NRT service metadata contains an indication whether or not a particular NRT service is to be offered on a subscription basis. This abstract is not to be considered limiting, since other embodiments may deviate from the features described in this abstract.