Big Bang Theory' star Johnny Galecki made a guest appearance on last night's episode of ABC's rebooted comedy 'Roseanne'. Galecki returned to his role from the original series of David Healy, the husband of Darlene Connor who is played by Sara Gilbert.
People are going CRAZY over David being back on the show because he wasn't in the original (new) trailer so to see him in this one just makes our day!
Did you watch last night's episode? What did you think?