ON PREVIEW CASSETTE 98016 Anti-Fog. A pair of eyeglasses is held over a streaming kettle; the glasses fog up, of course. Product is wiped onto one lens, and the test is repeated - look, no fogging! Amazing! Next, a man wipes the product onto a bathroom mirror. Now, as he shaves, the stream from below doesn't fog the bathroom mirror. This man looks way too happy to be shaving. Inventions. 1960s? Man sits blindfolded in a car. The rear windshield is fogged up. A woman wipes fog off a window at home. More eyeglasses tests with a different kettle. Then more experiments with bathroom mirror.