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High definition televisions made their first appearance in the early 1990s. They were largely demonstration models or used with specially generated content rather than receiving broadcasts. It wasn't until ten years later that they became available commercially with broadcasters delivering HD content.
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What is the difference in 1080p and 720p technology in HD tv?
High definition television uses one of three common formats - 720p, 1080i and 1080p.720p indicates that there are 720 lines in the image. The "p" means "progressive" and a complete image is delivered 50 or 60 times each second.1080i shows that there are 1080 lines. The "i" stands for "interlaced" and the image is sent in two halves so a half image is sent 50 or 60 times each second but the full frame is sent only 25 or 30 times each second.1080p is also made up with 1080 lines but the "p" shows that a full image is delivered 50 or 60 times each second.Broadcasters use 720p or 1080i. These are both full HD signals. Although the 720 line image has a lower resolution, it is updated twice as fast. The data rate for 720p and 1080i is the same. Although 720p is less common than 1080i, it is used by broadcasters for some fast action content such as sports.1080p updates the image at twice the rate of 1080 and therefore uses double the bandwidth. Broadcasters do not send out 1080p and it is restricted to local sources such as Bluray, games consoles etc.
Does Blu-ray work with 720P?
Bluray handles all HD formats. As 720p is one of the HD formats, it will play it without a problem. Bluray will also handle 1080i and 1080p formats as well as standard definition. Depending on the set up of the player, the output will be in the format recorded on the disc or it may convert all formats to a single format such as 1080p. As an HD television will also handle any of the formats, it is worth experimenting with the set up to see if 720p discs are displayed better when the player outputs the native format or in a converted format.
If a sony blu ray player is set up at 1080p and is set up to a HDTV at 1080i will it play a blu ray disc with high definition sound and picture?
I have a sony bluray player conected to my tv by a hdmi cable only it wont work can anyone help me --------------- Go into the menu and set the output resolution to either 720p or 1080i and it should work on any HDTV that's not 1080p. If it doesnt, don't use an HDMI cable - use Red/Green/Blue (Component Video) cables to hook up to the TV. It will work fine at 720p. You will also need to connect additional red and white cables for sound.
Your ps3 has 1080p HD but when you play NBA 2K9 it goes down to 720p How can you play with 1080p?
you can't it's the way the game is also you need the good cables like HDMI or the green orange and blue red and all that good stuff
Do you need a 1080p tv to watch Blu-ray discs?
There are several HD television formats, all agreed with the international standards organisations. The main formats are 720p 1080i and 1080p. Virtually all HD televisions will handle all formats although some of the earliest HD televisions don't operate with 1080p signals. Later televisions are capable of displaying 1080p as well as other formats. Every HD television has a native resolution. Often, the screen is made up with 1920 x 1080 pixels. All incoming signals are resized to the native resolution. A 720 line signal will be processed to be displayed on the 1080 lines of the display. Similarly, a 1080 line image will be resized to display on 720 or 768 lines if that is the television's native resolution. Therefore, an LCD television with a native screen resolution of 720 lines will be capable of displaying a 1080 line image.
