Which to choose from HD 720p or 1080i

[Wali]

I need some help to choose for a appropriate resolution. Here I am using a old Samsung TV. Soon I am going to buy a new LCD TV from samsung. I am confused between choosing a 720p or 1080i resolution for the output quality. Does a DVR box can play some role for controlling the output quality of the broadcast signal. My entire hope is then on my media center software in which I can stream video and then convert them the same.

[CACTUS101]

The 720p compresses much better than the 1080i, it explains why the picture may appear so good on 3 HD channels as per QAM. At 2 HD channels per QAM, 1080i can give a clearer picture depending on the quality of the broadcast signal and the type of TV. Your must have good support for conversion of the same or else you might net get a good output for the same.

[CAILYN]

For the same bitrate, channel encoded 1920x1080i may seem a less encoded channel 1280x720p, because of compression. Normally, there should be only 2 HD channels per QAM. . The channels are not re-encoded but transcoded, just as do the DVD copy software. The quality deteriorates quite rapidly with transcoding and that basically depends on the software you are using.

[xanix]

What I know about this is that the HD channels OTA bitrate stays between 16 and 18 mbps. In the matter of QAM, it has a maximum of 38 Mbps. The three channels should take approximately 48-54 Mbps, but there are only 38 Mbps available. PBS has the advantage of inheriting a good share of the pie, or about 14-15 Mbps. With a resolution of 1280x720, it gives a very good quality.

[David23]

If you can provide a good DVR support to your TV set or monitor then you might get the better output. The quality depends on the broadcast. With SRCHD you can see that the 1080i has an excellent quality. They do not broadcast much in HD but some programs were excellent. This allocates a bitrate of 17-18 Mbps each, which is excellent and it seems easy. Even when these channels do not broadcast HD, color renderings and fluidity of movement shows that with a good bitrate.

[ApPy10]

Here QAM-256 refers to the density of information conveyed by the modulation method, and not the number of channels transmitted on the network. QAM-64 has a capacity similar to QPSK (27Mbits / s) while QAM-256 compact more information (38.8Mbits / s) but requires a better signal to noise ratio for transmission (this is the reason why opts for satellite QPSK).

[Archibald]

Although in the current television broadcast signals clearly progressive benefits, 720p done in other areas and because of existing market conditions, as many disadvantages as it seems wise to Interlaced, to accept disadvantages, and rather on the lines of 1080 to go. The pitch of the interlaced to progressive can then more easily done. The video quality of the same mainly depends on the broadcast signal.