I got into advertising at the tail end of physical delivery of the material: veloxes, match prints, 1/4 inch reels for audio, Beta SP for video. Saw all of it for a couple of years. It's all very stone aged compared to today. In some ways the industry has gotten better, in others worse. Clients have no imagination. They have been spoiled by the computer. They used to approve a pencil sketch possibly drawn on a cocktail napkin because they could visualize the concept. Nowadays they need to see layouts that are so close to actual ads just to be able to say yes.