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At this moment in time the best resolution you can choose is 1080p. But what is the difference between 1080p and 1080i?

The difference between ‘p’ and ‘i’ televisions is the difference in the way the television scans the picture. ‘i’ means interlaced scan, the television scans the picture in two passes each taking about 1/60th of a second. The first pass covers the odd lines and the second pass the even lines. This means a 1080i TV needs1/30th of a second to display the full image. ‘p’ stands for progressive scan, the image here is scanned in one pass. This gives a smoother clearer image and hence is the best option to go for (if you can afford it).