I've got a MacBook pro 15' running 10.6.6. I want to use an external monitor for my graphic design work running Adobe software and thought I'd try an HD TV. I ran a Mini Display to HDMI lead to the TV but the picture quality was disappointing.

I've got a MacBook Pro 15' running 10.6.6. I want to use an external monitor for my graphic design work using Adobe software and thought I'd try an HD TV. I ran a Mini Display to HDMI lead to the TV but the picture quality was disappointing. I also tried a Mini Display to VGA lead and that wasn't much better. I tried all variations of resolutions in System prefs - Displays but nothing helped. Am I getting something wrong? Thanks all.

In addition to pixel density, you are up against the translation driver card in the TV.
If you read the fine print of computer-resolution-capability in the TV user guide, you will see a chart as tall as the manual page.  At the top is the smallest resolution capable, at the bottom is the full use of the 1080p in the TV.
Mac falls into the top 25% of the page, maxing out at 1366x768 often.  This is because the TV control card is expected to do too much of the work, but is not designed for computer-monitor processing.
I looked at the resolution charts on 2 TVs before deciding to buy a 1080p LCD monitor that has a TV interface/connector.  Computer monitor first, TV second.  But the thing is only 27 in.  Good thing TV is not as important to me as it is to others.

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