: SD 16:9 vs 4:3


Coder2
2009-05-10, 07:11 PM
I am here to try and understand why 2 of my TV's are showing SD channels differently. HDTV1 shows SD Channels in 16:9 so full screen but HDTV2 shows SD Channels in 4:3 format so windowed.

Let me elaborate on how I have both of my TV's setup...

HDTV1 - Rogers HDPVR SA8300 connected thru HDMI cable. In settings I have 480i/p standard, 720p, 1080i checked. Picture format is set to pass-through auto DVI/HDMI. This tv shows SD channels in full screen 16:9 format.

HDTV2 - Rogers HDPVR SA8300 connected thru HDMI cable. In settings I have 480i/p standard, 720p, 1080i checked. Picture format is set to Upconvert1 because this HDTV does not accept 480i signal over HDMI so its upconverting the 480i signal to 480p. This tv shows SD channels in 4:3 format.

So back to my question, is the aspect ratio for SD channels different on these 2 TV's simply because TV1 is showing SD in 480i vs TV2 showing in 480p?

Thanks for reading, hope I can get an answer.

57
2009-05-10, 07:49 PM
Well, you should be able to cycle through the stretch modes on the TV to get identical views for the SD channels on both TVs. See the following posts on Black Bars and WS Stretch modes.

One of your TVs is not stretching, while the other is zooming, if the 16:9 SD is filling the screen. It's possible that, depending on the input signal, that there are limits on which stretch modes can be used by the TV.

http://www.digitalhome.ca/forum/showthread.php?t=76089 Black Bars

http://www.digitalhome.ca/forum/showthread.php?t=76074 Stretch Modes

See also the following useful post: FAQs, Optimization, etc:

http://www.digitalhome.ca/forum/showthread.php?t=57741

Coder2
2009-05-10, 09:00 PM
Edit: Never mind I figured it out and I feel like a dumbass, apparently even tho I had the Picture Setting on HDTV2 set to "16:9" it was only set to that for 1080i signal, when I checked the settings again while viewing an SD picture I noticed it was set to "4:3", basically I didn't know that I can set different Picture Settings for different input signals. Either way thanx for the reply 57, Cheers.