Where do I get High Definition programs to watch on my HDTV
There are many sources of pictures to display on an HDTV set and and some of the more popular media types are listed below:-
1. The cable providers broadcast some of their programs in HD mode. This sort of evolved from the cable suppliers first delivering analogue only services and then digital and now some HD broadcasts as part of the total package.
2. Over the air HD broadcasts. An HD ready HDTV will include the necessary equipment to receive these signals with a suitable HDTV antenna or aerial. A standalone set top box can be used in the event of the TV not having a suitable receiver.
3. Satellite TV companies usually have an upgrade or premium service which includes a number of HD channels.
4. Computer games – such as the Xbox 360 and PlayStation 3 have an HD output. We also now have Satellite TV for PC cards and adapters starting to hit the market. These internet HDTV cards enable media that was originally broadcast by satellite to be transmitted via the internet to your desktop. Satellite TV to PC and My New Satellite TV are companies providing these products and claim to access up to 3,000 satellite HDTV channels.
5. Finally the new Blu-Ray disks and Blu-Ray players are effectively an HD version of the current DVD disks and players and will enable you to play movies in full HD mode on your HDTV.
Before you buy an HDTV check-out HDTV reviews and find any FAQ HDTV or HDTV FAQ pages to get the most up to information before spending your money on the best HDTV you can afford. Just browsing through the full manufacturer’s specification will enable you to ensure you have the HDTV features that you require. If you are specifically looking for a small TV then try looking for - best small HDTV review and similarly for best large HDTV review. You may also wish to take a look at a Satellite TV guide. If you have a specific allegiance to a manufacturer then you could for example search specifically for Sony HDTV review or Samsung HDTV or similar.
What is High Definition Television?
High-definition television (HDTV) has a higher resolution than conventional television (known as standard-definition TV, or SDTV). HDTV is a digitally broadcast system and consequently uses less bandwidth than traditional analogue systems. The less the bandwidth then the easier and almost certainly faster it is to deliver the data or picture to your TV set. There have been several predecessors to the now current HDTV and any concept of high definition is relative to existing systems. The system we now have was in fact first broadcast publicly in 1997 by CBS in the USA. The HDTV we have implemented today is based on the ATSC HDTV standards (the American Advanced Television Systems Committee) for North America and the DVB HDTV for South America, Africa, Europe and parts of Asia.
The key factors which define the bandwidth and hence the eventual quality of a digital picture is:-
1. The number of pixels on a screen. There are many technical issues defining the standards but in layman’s terms there are really 2 HDTV resolutions and they are 1280 x 720 (just under 1 million pixels) or 1920 x 1080 (just over 2 million pixels). The bigger your screen then the more likely that you’ll have the 2 mega-pixel resolution.
2. The number of frames per second to be displayed. Again there are different technologies providing different definitions but put simply HDTV frame rates are 25 frames per second or 30 frames per second.
3. The data compression or video compression algorithms used are now the Mpeg-2 and Mpeg-4 standards. There are common standards for the compression (and subsequent reverse of the compression) which can be accommodated on some chip or small card. Compression simply means that there are some clever formulae which remove the necessity to store each pixel for each frame. If for example we record the changes from one frame to another then we’d have some form of compression.
Introduction to Satellite TV and HDTV
The box or the basic television set has changed from a relatively small unit to a huge box using a C RT or tube. We’ve seen the shape of the TV picture change from a 4:3 format to a 16:9 format which has made watching the widescreen movies a better experience. In more recent times we’ve seen the introduction of the flat screen or the flat screen plasma and flat screen L C D televisions which are still bulky but a lot less likely to damage your health than the larger C RT based units. Over similar periods we’ve seen the introduction of the DVD and now the new Blu-Ray devices.
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JVC’s new X-series LT-42X579 LCD TV feature a newly designed cabinet with a thin glossy bezel and bottom-firing speakers, a configuration that conveys the sets’ focus on both audio and video performance. Full HD resolution of 1920 x 1080 pixels and up convert all signals to display at full 1080p. Three HDMI inputs allow connection of the latest generation of 1080p sources that offer 1080p outputs. Other features include nine aspect modes, four picture modes, a new on-screen menu system with detailed graphics, a redesigned remote and a side-access USB photo viewer. |
The point of mentioning the above is to illustrate how many changes there have been and it is of no surprise that the debates about the best TV systems will continue. The current debates evolve due to two key developments. The first point is the concept of a digital television and the second is the concept of High Definition Television or HDTV and both are really sort of packaged together. HDTV screens provide a lot more detail to the picture and high quality sound. The larger the screen the more desirable it is becoming to have a high definition set.
Once you’ve established that you want to buy an HDTV or already have one then the next question is how you get the best range of broadcast services at the best value for money. As you can imagine, or already found out, this previous question is complex and rapidly changing. This assumption overlooks the possibility of accessing free to air high definition transmissions and receiving directly to a PCI card in your computer. At the time of writing I understand ATI in addition to their existing ATI TV Wonder PCI cards have recently released a product called ATI HDTV Wonder which is available in the USA . This brings HDTV to the PC.
The following are probably the most commonly available HDTV solutions are:-
- HDTV Cable or cable HDTV – available via the traditional cable distributors. At the time of writing it is widely accepted that this does not generally provide the best range of services and value. There are, of course exceptions, and if you find a local cable supplier that meets your exact requirements then great.
- HDTV Satellite or satellite HDTV – this is a great way to get the product because once a new channel is added then everyone gets access via the satellite. Dish network (sometimes seen as dishnetwork or just dish TV) is the largest national provider in North America and directv trailing somewhat behind. Sky satellite is the only large commercial supplier in the UK . Satellite HDTV is received by use of a satellite dish and satellite receiver box. There are free satellite TV broadcasts but these are generally for the less popular channels.
- Internet HDTV is HDTV via the internet and loaded to a computer. Satellite TV to PC and My New Satellite TV are 2 of the leading products capable of delivering literally thousands of TV channels that have initially been distributed by satellite.
Whatever your choice today then as sure as we can be there will be further developments just around the corner.
It’s always worth reading the up to date HDTV reviews and finding any HDTV FAQ or FAQ HDTV page to get the latest information before spending your well earned money on the best HDTV you can afford.