No Evil_Trunks is rite, the charcters did glow in a few episodes like after Goku first charged up in the Cell Games. I have the screen shot on a DBZ poster in my bedroomOriginally posted by Evil_Trunks
I have seen a number of episodes the characters actually glow. For instance, Goku and Cell when they power up during the cell games.
But they don't glow for long or that often.