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Difference between 720p and 1080p projectors?

I've had an Optoma H79 projector for 5 years and it still works great, but I'm wondering how much video quality difference is there between it's 720p resolution and newer projectors offering 1080p. And is there a very noticable visual difference/improvement or essentially the same?
rxlarry99
rxlarry99 OP
49 posts
 
Is a 1080p picture roughly 20% better than a 720p?
maddoggy
77 posts
 
Is this a great example or what.Is there any programing in 1080P.1080i is all thats used.the hd programing, the cameras are 1080i.At least that was my understanding.Good luck
gary17
18 posts
 
look at projectorcentral.com for answers to many technical questions regarding projectors
dave43
108 posts
 
Most HD cable, satellite, and over the air signals are broadcast in 720P (1080i) not 1080P. The most common source for 1080P is the Blu-ray DVD format. So, on broadcast HD, you won't see much difference between a 720P or 1080P projector.
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