broadcaster view

• viewer retention

• national move of TV technology is non-trivial

• system reliability

  • avoid complaints due to appearance differences
  • avoid legacy updates - remember level 1.5 teletext?
  • is download in an open market of receivers viable?

• authoring issues

  • ease of content creation
  • easy re-use of archive without re-authoring

• bandwidth management

  • basculate receiver response time and cacheing
  • rules of engagement, in an open receiver

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