You have no issues with component cables if you check BOTH ends of the cable.
You get GOOD gray scale, there are no blotches of red seen in the picture. Your TV's panel is properly calbrated and your signal source is sending correctly.
If the COLOR on your DVD looks good....the TV's color processor is working correctly.
Now...did you know that most TV set's COLOR setting remembers the color level you set EACH INPUT TO ?
Turn the color ALL THE WAY OFF on your questionable input....
Leave the DVD's "perfect color" set where it was.....
Switch inputs back and forth. Do you happen to notice that the DVD has color and your "questionable input" remembers that it's set to black and white?
If so, then your TV remembers the color setting for EACH INPUT !
And when you say the "picture is too red" , I immediately think the Color control is set TOO HIGH on the excessive red input.
You have to be on that input, adjust the color level down so that actor's skin tones look the same as your skin tone.
A pink person should be pink, not DayGlo Pink.
A yellow person should have a normal level to them too
A person of African origin...I use their skin tone as a "final tweaking" of color. Why? Because their skin tone is a VERY unique level of Red, Blue and Green levels.
I find a mid-tone level, not too dark or light. Mahogany is the best way to describe it.
That level of skin tone is Perfect...I use it to "final tweak" my color intensity, and tint.
If any one of those two settings are just a hair off....you see it, you KNOW it, and you can TWEAK it !
Just to let you know...I worked on broadcast cameras back in my earlier days. You learn how to make them right.
I'm pretty sure from your description that the color setting on one of your inputs is set too high.
If you have any questions, just ask
If you are finished, please press the ACCEPT button.
Tips are greatly appreciated !