Shunyata Hydra 2

I bet the picture would be sharper and colors more vivid with it in the chain.

Any digital device benefits greatly from a Hydra...especially if you're using a Shunyata power cord on the DVD player. Transports are very noisy and digital converters generate a great deal of noise. The Hydra will help to clean that up and you should easily notice a difference both on the screen and in the sound.

Absolutely, agree with Stereo5 above. In fact, those improvements did occur when I placed a Shunyata Hydra 2 (and later a Hydra 8) in my system, including having the DVD player (now a Blu-ray player) and also the TV attached. The picture was more 3D/holographic and color saturation improved so much that I had to adjust the color saturation downward.

Sound will improve also.

Get yourself an used Audio Power Wedge instead if you want isolation. Hydra is just a little black box with a single capacitor sticked across the AC poles.