what did you read about pva and ips panels?
i've looked for information on my model in the past and always thought it was s-ips however..
http/store.sony.com/p/KDL-40V3000/en/p/KDL40V3000/BSTOCK
its listed as 10bit and s-ips is only 8bit. i dug a bit further and i have found a few sources claiming it is a s-pva panel (which normally is 8 bit too) but the newer variety which is 10bit.
my computer monitor however (which i have in storage right now) was a $650 20" s-ips 8bit panel from the viewsonic pro lineup.
i suppose this means that i have personally used both pva and ips. personally i've never noticed a thing wrong with them.
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were you testing 50hz televisions?
i find it hard to believe that there is a problem with all the televisions.
if i scroll fast enough there is some image chopping on the screen however i have never had any problems in game. to be honest unless i try to actually case the effect i dont see it.
what could be happening is that you are one of the people who can really notice response time. while some people may not have an issue with panel response times there are some people who do notice an issue on all but the fastest monitors.
as a test what i would like for you to do is to test out a 1ms response time monitor down at your local store. these are typically TN panels. granted they are not the best in terms of color or viewing angle but they do have the lowest response times you can get.
50hz should be fine... no need to get 100hz unless you have the hardware to back it up and i'm not sure ps3/ps4 will really support the added benefit of 100hz.
does this ultra low response time reduce the "blur" or "ghosting" that you are seeing?
the absolute best you are going to see as far as how fast the image can be scanned is a 100hz tn panel. the response time is ultra low and the refresh rate (how fast the panel vertically scans and changes the images) is also the highest. as with normal tn though color accuracy and viewing angle are not as good.
as far as ps3 support... this requires HDCP support. i dont know if ps3 can display at 100hz either. if it only displays at 50hz then a 100hz monitor is useless for ps3 use.
blur could also be somewhat from your computer settings. ie from vysnc being on or off, etcetera.
anyways... try out a TN panel or some computer monitors with your pc and see what you think. reply when done.