Locke_Trinmin wrote:
by the way...by the year 2006 all tv companies will ONLY be producing high definition televisions...just recently more high def tv satellites have been launched into space.
Actually, not quite. By 2006 90% of TVs manufactured have to have a digital tuner in them. HDTV is digital, but a very specific type of digital. Certainly not every TV or signal will be mandated to be HDTV.
By 2007 analog "over the air" TV broadcasts will be outlawed, allowing the radio frequency spectrum much more bandwidth for two way communication (emergency services, cell phones, the like). Adapters will be available to take digital signals and convert them into standard analog signals for older televisions.
(I'm also not sure how this affects cable companies. Theoretically they can still send analog signals over existing cable networks, as long as they aren't leaking signal into the air. It is probable that they will use this as a reason to force customers to digital, though, making their lives much easier, and probably also bringing in more revenue. I'm not sure what the law is concerning them.)
We're quite simply running out of the electromagnetic spectrum frequencies to carry information over the airwaves. Digital signals can use any frequencies and can be compressed much more easily than can analog frequencies where you only have a limited range to be able to carry large amounts of data. Hence the change.
I'm not sure how the Canucks or Mexico play into this. They obviously aren't regulated by the FCC, and I'd imagine there would be a fair amount of interference caused by foreign signals in the air. On the other hand, this isn't an emergency rollout, and I'd imagine they'll all soon follow the standard set by the American Industry.
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