British HCI Group 22 January 2004 Where are we now and Where are we going? Jonathan Marshall BBC Scotland Interactive

British HCI Group 22 January 2004 What is iTV Interactive TV is not one single thing. It covers all the content and services (in addition to linear TV and radio channels) which are available for digital viewers to navigate through on their TV screens. Not new, CEEFAX invented in the 1970’s

British HCI Group 22 January 2004 Where are we now? 50% of all UK homes now have Digital TV Digital Satellite – 7.2m subscribers Digital Terrestrial - 2.5m subscribers Digital Cable m subscribers Digital Subscriber Line - 10k subscribers 8000 hours of extra iTV content per year Exponential growth within BBC Enhanced TV and 24/7 Services

British HCI Group 22 January 2004 Enhanced TV Associated with linear TV programme Accessed using the Red Key Can be synchronised to TV programme Must share the same channel as original program

British HCI Group 22 January /7 Services Available all the time Accessed using the text key Not usually associated with a linear program Can be broadcast on separate channel

British HCI Group 22 January 2004 Interactive Technologies Dynamic Content How we update content Multi Stream How we add extra content Return Path How we get content back from the viewer Synchronisation How we synchronise content

British HCI Group 22 January 2004 Dynamic Content BBC Sport Interactive iTV application updates with results Requires backend systems

British HCI Group 22 January 2004 Multi Stream World Athletics Based around the Wimbledon model Hidden channels Mosaic Requires playout systems

British HCI Group 22 January 2004 Return Path The Big Read Allows us to receive content back from the viewer Web, iTV or SMS Requires modem farm and data aggregation

British HCI Group 22 January 2004 Synchronisation Test the Nation Live quiz synchronised with linear TV program Playout of iTV application needs to be tied to linear TV

British HCI Group 22 January 2004 Where is our audience going? Consuming content in more active ways From lean back to lean forward experience Sharing content Peer to peer, billions of files per year Sacrifice quality for convenience Mp3, MPEG-4 Personalised content myBBC, TiVO

British HCI Group 22 January 2004 Where are we going? On demand services Personal Video Recorders DSL video servers with archive material Shared content Trusted Peer to Peer gateway Viewer generated contributions Higher Quality Output HD over DSL is now possible

British HCI Group 22 January 2004 Creative Challenges Viewers less likely to watch entire programmes Provide links between similar content Need clever navigation models (EPG) Same content viewed on multiple platforms User interface differences Different form factors e.g. Web on TV

British HCI Group 22 January 2004 Creative Challenges Need to keep viewers loyal How to keep content sticky Create personalised services Allow viewers to control journey Shared interactive experiences

British HCI Group 22 January 2004 Solution - Metadata Content is not king – Metadata is Data about our data Multi dimensional classification system TV Anytime Allow viewer to navigate their own journey Using links not schedules Intelligent Agents will learn adaptively

British HCI Group 22 January 2004 Future Scenario You receive a promo on your mobile Watch the trail and decide to record it Start watching at home using a PVR However you need to be at this seminar Continue watching on your PDA

British HCI Group 22 January 2004 Questions Jonathan Marshall