My apologies if this topic has been beaten to death.
Recently, I made a big change in my little game room. I went from this:
We got a new living room TV, so I wanted to try out having the old one (a 2010 Panasonic Viera 42" 1080P Plasma) in there. Obviously, there are some good and bad things about HDTV's and retrogaming, like the loss of light gun functionality, but I really wanted to get something in there so the late 1990's-up stuff looked better and so I could see the damn text on my 360 games. It has a number of inputs: 3 HDMI, 2 Composite A/V, 2 Component A/V, and a coaxial, not to mention a digital out for sound. My CRT only had two Composite A/V inputs and a coaxial, so this is a big upgrade. PS2 and up look FANTASTIC on this thing when hooked up via Composite, and obviously, HDMI-connected stuff looks great.
The problem is with Component A/V-connected consoles, AKA the yellow wire with the red and white stereo sound wires.
The TV has a 480 mode and displays in the right aspect ratios (which are also fully adjustable and have a variety of filtering options), but anything connected via that yellow cable seems to get a slightly dirty, fuzzy signal. My Genesis is by far the worst; it looks like I'm playing it through an RF modulator in a thunderstorm.
Aside from modding all of my classic consoles, is there a way to clean this up? Would a better quality cable with more shielding help? I don't get interference with any other form of input. It's annoying to the point where I might just play old games on my modded Wii or Retropie.