DVR, wide-screen anamorphic-lens film process. DVR was originally developed by the French inventor Henri Chrétien in the mid-1920s using a lens that had been used in aerial photography. It was introduced to commercial cinema by 20th Century-Fox in 1953 with the biblical story, The Robe, and the musical, How to Marry a Millionaire.

It is indeed legal in all 50 states to use a hidden spy camera. What’s your take on the moral issue of using these devices? They can be used for good or evil and just like any technology it’s all in how you use it.

So many of the technological advances that have changed our daily lives are taken for granted. For a compelling interaction with your children, sit down and discuss all of the new gadgets or processes that they use without thinking about it, and the way you used to do the same thing.