If you thought you've noticed a difference between sports and a sitcom, you could be right. They may have been broadcast in different resolutions. In reality, p stands alone. This means that the TV is "capable" of receiving i signals but converts it to p, so try not to fall for this gimmick. Toll-Free: This will be more noticeable on incoming i signals as the TVs processor only has to scale the resolution up to p or down to p or p , but also has to perform a task called "deinterlacing".
Deinterlacing requires that the TV's processor combine the odd and even lines or pixel rows of the incoming interlaced i image into a single progressive image to be displayed every 60th of a second. Some processors do this very well, and some don't. Don't get bogged down with all the numbers and tech terms.
If these types of TVs are advertised as a "i" TV it means that while it can input a i signal, it has to scale the i image to p or p for screen display. With just a few exceptions, p TVs have been relegated to inches and smaller screen sizes. You will also find a growing number of p TVs in that screen size or smaller as well but with 4K Ultra HD TVs getting less expensive, the number of p TVs in inch and larger screen sizes are also becoming less numerous. Actively scan device characteristics for identification.
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List of Partners vendors. Robert Silva. Robert Silva has extensive experience in consumer electronics and home theater product sales and sales supervision; he has written about audio, video, and home theater topics since Robert has articles published on HBO.
Irrespective of the comments both ways on thios subject, they appear to all be ignorant of the differences compounded by the amount of data delivered via OTA vs Cable or SAT. ALL of these formats are capable of very high resolution ior p, but none deliver their content uncompressed and dithered into a subset of the picture's former glory. The best comparison between ALL formats would be to compare the relative quality of a high-end Blue Ray player running at P vs all other formats, and rate them both on resolution and compression.
I've seen some concerts on prime-time PBS special events that looks and sounds absolutely stunning, then on the same channel I've seen bran-newly produced programs in "HD" that are pixellated, have streaming fallouts, and pasty surface-posterized artifacts throughout. The comparison of resolution alone is not adequate to address all the visual differences between i and p.
I find on my 61" p projection TV i source looks significantly sharper than p. I'm speculating that in i all the spatial resolution is provided and the TV does a better job at deinterlacing than filling pixels for a p source. To the previous commenter: Your comparison isn't quite valid for comparing p vs i. The reason is the Over the Air HD broadcasts usually have a higher bit rate than cable or satellite.
So if you compare an p satellite signal to an OTA p you will see the same result even though resolution wise they are identical. I was watching Letterman in HD. Bill Cosby was the guest. I watched in i and then switched to p.
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