british hci group 22 january 2004 where are we now and where are we going? jonathan marshall bbc...
TRANSCRIPT
British HCI Group22 January 2004
Where are we nowand
Where are we going?Jonathan Marshall
BBC Scotland Interactive
British HCI Group22 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 Group22 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 - 1.75m 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 Group22 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 Group22 January 2004
24/7 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 Group22 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 Group22 January 2004
Dynamic Content
• BBC Sport Interactive
• iTV application updates with results
• Requires backend systems
British HCI Group22 January 2004
Multi Stream
• World Athletics• Based around the
Wimbledon model• Hidden channels• Mosaic• Requires playout
systems
British HCI Group22 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 Group22 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 Group22 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 Group22 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 Group22 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 Group22 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 Group22 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 Group22 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
