|The BCE Mark II video recorder in early 1953. (l-r) Jack Mullin, Bing Crosby and Wayne Johnson|
I found this article by Robert R. Phillips, the early magnetic recording engineer who worked at Bing Crosby Enterprises, on Engineering and Technology History Wiki site today. This is a fascinating read.
You may not know this, but Bing Crosby was the father of modern magnetic recording technology. Oh, I don't mean he spent hours fiddling with vacuum tubes and making solder joints. He just wrote a series of fat checks to engineers to build audio and video recorders so that he didn't have to deal with radio and TV live shows every week. He had his own laboratory (Electronics Division in Bing Crosby Entertainment) and a group of very talented engineers working for him.