Pixelated images at times (Time Warner)

[cnjbucks]

I am looking for some advice.  I have Time Warner as my provider, just to get that out of the way.

My connections between my TV, DVR, and receiver are all via HDMI.  The cables I bought were online, probably a $5-$10 a piece.  

I have noticed mostly when watching concerts where there are a lot of lighting effects and changes in lighting, it can get very pixelated.  I've seen it occur in concerts on Palladia and on Sundays on HDNet.  

I am wondering if anyone else has this issue or have seen this problem.  And more importantly, any suggestions for troubleshooting. I can only assume it is the cabling.

If model numbers for receiver and TV are needed, I can provide those.

[RonH]

Since you mention it is occurring with flashing lights, it is a response time issue.  There's two issues at play here.

First, digital TV is encoded and compressed using MPEG2 algorithms (or MPEG4 on some systems).  The nature of these encoding algorithms does poorly for things like flames and strobe lights used during concerts.  This has nothing to do with Time Warner, unless they are compressing it even further, which limits bandwidth available to render a flame or fast lighting.

Second, I suspect you have an LCD, and perhaps a slower response time one.  I have a sony XBR1 LCD, and strobe lights for concerts look pixelated on that TV.  My Pioneer Kuro Plasma shows much less image artifacts for fast lighting scenes.

It's not your cables.  I have ones from monoprice.com for $3 or something close to that on all of my video equipment.

[cnjbucks]

After I posted, i did a google search and found in avs forum information very similar to what you explained.  It is mostly in strobe lights or in zoomed in footage with lights in the background.

My TV is LCD, I think I got it in February 2007.

Thanks for your help.