First of all, there is NO comparison between SD and HD. The HD channels, when properly viewed and connected to an HDTV, is stunning and SD pales in comparison. Secondly, I'm not sure about how TV stations broadcast, but I think many broadcast one signal and then it depends on your service, whether satellite or cable, to downconvert to SD. But, the downconversion degrades the signal to 480i, and all the crummy SD transmission artifacts affect the signal so just because it may have started HD, the signal doesn't look any better than basic SD. There are also many stations that ONLY broadcast in HD, like Smithsonian HD, Discovery HD, HDNET, etc. These true HD channels either broadcast in 720p or 1080i and you need to subscribe to your providers HD service to get this quality. And don't forget, you need to connect your cable or satellite box to your HDTV by either using Component or HDMI cables. Anything else will not allow you to see HD.
True SD channels are 480i, not 480p, 720p or 1080i.
So I was looking into getting Dish network Satellite because I just got an HDTV. My sister has it, and she has an HD tv. But looking on Dish network?s web site, I would have to upgrade to HD Bronze to get HD.
Talking to my sister, she said SD looks just fine on her HDTV?
Then I looked at the HD Bronze package and it looks like all that is, is just a couple of other channels in HD?
So my question is, does SD still have HD channels? Like local channels? (are they in at least 720p? 1080i?)
Are there other stations in the basic Family package of Dish network that are also HD?
Or do they downgrade the shows to SD (I?m guessing 480i or p)?
Would my local channels which are sent over the air in HD, be downgraded to SD? I guess thats what I think of when people say SD?