sites including homes offices entertainment facilities or other locations the content creator 12 originates enhancement data or other type of ancillary information and television content or other type of content including audio and or video data to be transmitted by the transport operator system 14 alternatively the content creator 12 may create enhancement data with television content provided by another source to the transport operator system 14 enhancement data may include graphics e g web pages multimedia information or other digital data files presentation layout and synchronization information the combination of the enhancement data and television content is referred to as enhanced television content the transport operator system 14 provides an enhanced television content delivery infrastructure that may include terrestrial cable satellite or other types of transmission facilities either analog or digital the television content and enhancement data may be transmitted over a transport medium 22 which may be a terrestrial cable satellite or other type of link to the receivers 16 the receivers 16 may include televisions set top boxes personal computers or other types of systems adapted to receive television content and associated enhancement data as used in this description the term audio video a v content is intended to include any type of audio and or video data that may be transmitted or distributed to one or more receiving sites for presentation to viewers and or listeners as used here a v content may refer to content that may include both an audio and a video portion or one of an audio or video portion further ancillary information other than enhancement data may be transmitted with the a v content for example ancillary information may include program sub titles.