Whatever Happened to Covert Bailey?

Covert Bailey, an MIT-trained biochemist, appeared on PBS in the late 80s talking about exercise and metabolism. Initially his lectures were more science-oriented as he talked about biochemical changes in muscles as a result of exercise. Eventually he developed the "Fit or Fat" idea into a brand. His research background was left behind, the science started dropping away from his lectures, he wandered into nutrition topics, and ultimately ended up selling goofy-ass gizmos like the "health rider". It's a shame he hadn't stuck with the the research-based approach and focused on fitness, because he seemed to have some interesting avenues to pursue about insulin and exercise and the difference in body chemistry between fit people and unfit people.