what is the main purppose of TV be?
Entertainment, inform, educate, sell, show reality, help people escape rality?
- For entertainment
- A way of getting information across to the public
e.g. news stories ans weather, the news educates us about important decisions happening around the world and the weather tells us a message of how the day is going to be in advance so we are able to make plans if wishing to go out to travel.
- Think more about it: The Commercialism of Television
Future of TV: TV with new technology
http://news.bbc.co.uk/1/hi/technology/6142998.stm
Digital:
2008 - 2012: the analogue TV signal --> 100% digital in the UK
How to do that? Through an aerial, satellite, cable or phone line
How to watch it? Need a set-top box or a built-in decoder in your TV set.
What is its benefit? Extra channels, better quality, electronic programme guides and interactive features
Comparation:
+ Analogue signals: Transmitting sounds and pictures as continuously varying waves,
These signals use much less space than analogue--> more channels can be squeezed into the same airwaves
+ Digital information: Sent as compressed computerised pulses of information in 1s and 0s.
High definition television - HDTV
What is it? new format for watching programmes, offering sharper, clearer and brighter pictures and better sound.
How to use it? Need:
+ an HD-ready TV
+ an HD set-top box / decoder to receive the programmes by digital signals.
Process?
Televisions are considered HD-ready if the screen has enough pixels to display a high definition picture--> can display with either 720 or 1080 vertical lines.
The programmes: made and transmitted in HD.
How is about current?
The BBC is running free trial HD broadcasts.
Sky, Telewest are offering a commercial HD service.
Two different formats of available HD films: Blu-ray and HD-DVD.
Personal video recorders (PVRs)
What is it? Record digital television straight onto computer-like hard drives.
It combined with TV service (Sky or Freeview)
Benefit?
+ Can pause, rewind and replay action on screen and record a programme at the same time- allow for time-shift viewing of live TV.
+ Easier to choose what to record
+ Can always record your favourite soap / all programmes on a specific subject.
TV meets computer:
what? one big machine connects both TV and computer
Benefit?
+ e library of video from the internet to watch on your TV
+ Can use computer's memory as a PVR.
How is about current?
+ Microsoft's Media Centre has made a start.
+ Apple will bring out its iTV, doing a similar thing
+ A game (Xbox 360) let you download shows to watch on TV.
+ A device (the Slingbox) could really shake things up, beaming your home TV signal to any computer anywhere.
Entertainment, inform, educate, sell, show reality, help people escape rality?
- For entertainment
- A way of getting information across to the public
e.g. news stories ans weather, the news educates us about important decisions happening around the world and the weather tells us a message of how the day is going to be in advance so we are able to make plans if wishing to go out to travel.
- Think more about it: The Commercialism of Television
Future of TV: TV with new technology
http://news.bbc.co.uk/1/hi/technology/6142998.stm
Digital:
2008 - 2012: the analogue TV signal --> 100% digital in the UK
How to do that? Through an aerial, satellite, cable or phone line
How to watch it? Need a set-top box or a built-in decoder in your TV set.
What is its benefit? Extra channels, better quality, electronic programme guides and interactive features
Comparation:
+ Analogue signals: Transmitting sounds and pictures as continuously varying waves,
These signals use much less space than analogue--> more channels can be squeezed into the same airwaves
+ Digital information: Sent as compressed computerised pulses of information in 1s and 0s.
High definition television - HDTV
What is it? new format for watching programmes, offering sharper, clearer and brighter pictures and better sound.
How to use it? Need:
+ an HD-ready TV
+ an HD set-top box / decoder to receive the programmes by digital signals.
Process?
Televisions are considered HD-ready if the screen has enough pixels to display a high definition picture--> can display with either 720 or 1080 vertical lines.
The programmes: made and transmitted in HD.
How is about current?
The BBC is running free trial HD broadcasts.
Sky, Telewest are offering a commercial HD service.
Two different formats of available HD films: Blu-ray and HD-DVD.
Personal video recorders (PVRs)
What is it? Record digital television straight onto computer-like hard drives.
It combined with TV service (Sky or Freeview)
Benefit?
+ Can pause, rewind and replay action on screen and record a programme at the same time- allow for time-shift viewing of live TV.
+ Easier to choose what to record
+ Can always record your favourite soap / all programmes on a specific subject.
TV meets computer:
what? one big machine connects both TV and computer
Benefit?
+ e library of video from the internet to watch on your TV
+ Can use computer's memory as a PVR.
How is about current?
+ Microsoft's Media Centre has made a start.
+ Apple will bring out its iTV, doing a similar thing
+ A game (Xbox 360) let you download shows to watch on TV.
+ A device (the Slingbox) could really shake things up, beaming your home TV signal to any computer anywhere.
Mobile phones:
Now?Can be used to watch television on the move with high-speed but overload on network.
Improvement recently?
Improvement recently?
+ Phone manuafactures: triall competing technologies (DAB-IP and DVb-H) to watch the same shows simultaneously.
+ All mobile operators: offer some sort of video service which can receive BBC One and ITV1 live
+ All mobile operators: offer some sort of video service which can receive BBC One and ITV1 live
+ Can watch a wide range of "made-for-mobile" channels or download clips.
+ Can watch shows or video podcasts on iPods and other MP3 players
+ Can watch shows or video podcasts on iPods and other MP3 players
My thinking?
How is about TV on website with high speed? Youtube still doesn't work well sometimes.
Some TV on website is just in one country, for example bbc.co.uk/iplayer, other people from other countries can't watch it.
Is it possible for a extreme light TV as picture with a big size?
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