Popsugar Entertainment Roseanne Tv Show Johnny Galecki on Roseanne Pictures Before Johnny Galecki Was on The Big Bang Theory, He Was Stealing Darlene's Heart on Roseanne 19 January 2018 by Monica Sisavat Solís View On One Page Photo 1 of 13 ADVERTISEMENT () Start Slideshow Share This Link Copy ← Use Arrow Keys → 1 Previous Next Start Slideshow Roseanne TV ShowNostalgiaJohnny GaleckiTV