Can someone delineate the specification differences, between using coax, say orange connection; and using the optical fiber connection, for 5.1 surround sound. Can they both do 96khz/24 bit? Is the bit rate higher for optical? Does it matter at all? Is the compression different, etc? It also seems like I have seen another audio connection (perhaps SPDIF) on some TV's in lieu of an orange coax. Maybe a black colored connector. Any ideas on that connection, if I am not confusing something there.
Interlaced and Progressive scan
I have successfully confused myself on resolution variability and settings. My understanding of past, was you either had a progressive or interlaced TV, to scan the picture being displayed. Now the HD sets seem to do both, and you throw in up-scaling in between. I think I understand P or I from a conceptual understanding; but not exactly sure how the resolution metemorphesis pans out. For example: if I have my TV set to 720p on component input, and a 1080i image is input from the source; what does the TV do with it? Also which is better, and when, 720p 0r 1080i? If someone can explain, or point me to a good source, thanks a lot! I think my confusion stems from the way they market resolution to the consumer; in relation to devices and displays.

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