My guess is that you'll see some "simulcasting" for next few years, where cable and satellite providers offer both versions of the same channel. But eventually the settop boxes will handle the downconversion. In fact, all HiDef settop boxes already do this, but they're still too expensive to expect non HiDef folks to pay for them.
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SD vs HD channel question
Hello:
Have a question on SD vs a HD channel. Suppose, for example, the Scifi channel wanted to offer its programing in HD. Would it have to have a seperate HD channel and a seperate SD channel? Or, could it have one HD channel and have it "downconverted" on non-HD tv sets?
I was wondering that in the next two to four years more and more channels are going to be offered in HD. Wondering if they would have to have two channels being transmitted to cover both SD and HD tv's.
Have a question on SD vs a HD channel. Suppose, for example, the Scifi channel wanted to offer its programing in HD. Would it have to have a seperate HD channel and a seperate SD channel? Or, could it have one HD channel and have it "downconverted" on non-HD tv sets?
I was wondering that in the next two to four years more and more channels are going to be offered in HD. Wondering if they would have to have two channels being transmitted to cover both SD and HD tv's.
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The issue is one of bandwidth. A "channel" is 6Mhz of signal bandwidth dedicated to TV programming. You can fit one analog channel in the 6 MHz or about 8 digital channels or 1 HD channel. So it's a tradeoff.
They would have one SD digital/HD channel, and one analog channel. Thats how it works now, look at TNT, ESPN, ect. they all do it this way now.
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