Remember when a "multimedia" show meant having three to 12 slide projectors, a cassette recorder, and maybe a 16mm film projector? If you got fancy, you might have fog, three side-by-side screens, and some dissolve units. Remember the sky-high production costs, wires everywhere, spare lamps, backup tapes, spilled slide trays, noisy fans, clickety-clack projectors, wobbly platforms, and melted slides? Those were the days.
Let's look at what has been happening in the past 20 years or so