Hi --I have a model that is supposed to be very similar to Z4100 -- it is the KDL-40VL160, sold by Costco. I bought the set mostly to watch tennis and other sports in HD. The input is HDMI, and I do not know if the set was sold with any firmware updates already installed (I have not downloaded any updates; I bought the set in Nov. 2009, but I think it is a 2008 model). Basically, I would like to optimize the sharpness of small objects (such as a tennis ball or baseball) in motion.
I have played around with the settings a but (listed below), but the HD picture is still not sharp -- in fact it is somewhat disappointing. I have also turned off the light sensor, but the picture overall is still somewhat dull, and not very bright.
Here are the current picture settings:
Picture Mode: Vivid
Color Temp: Neutral
Underneath these settings, it says "Picture with enhanced edges and contrast"
Picture/Motion Enhancer: High
CineMotion: Auto 1
Picture/Video Optimizer: Video
If anyone can help me improve any of the settings, or a combination of settings, for the purpose of watching sports, I'd be very appreciative. This is my first HD tv, so the settings are a bit mystifying to me. My last tv was basically an On/Off affair.