Power conditioners .... improve VIDEO?

I have an early version of HD plasma, Viewsonic 425. The picture was never look good on HD (component inputs) for a few years until recently, when it is plugged in a Monster Power Bar 2000 MkII. The display is much improved with the conditioner. The picture can rival newer models with clearness and color correctness. In fact, I like the color of this Viewsonic more than many saturated color LCD/Plasma of my friends who have just got the LGs and Samsungs.

So I won't go without the power conditioner for the plasma.

Well I hope it works for me as I just bought adcom p/c in the hope for better video image and less noise.I have heard different opinions on the audio side however,I hope for the best.I will change the Power cord on my Sony HD TV also.

I added a Monster HTS2000 - really basic unit a couple years back and noted much more improvement in video on my Pioneer Elite 58" than audio. Not much cost, demonstrable improvement.

It's pretty shocking until you see it; improvements in image depth, noise, colors and black levels. The level of improvement depends on how bad the signal is in the first place, but improvements are obvious even with high def media. If you can swing it, the Transparent PowerIsolator Reference is brilliant.