Most start-ups aim to make a profit. Not Benetech. Instead, their goal is to develop technology that is helpful and that which benefits all of humanity, not necessarily the profitable. This makes Benetech no ordinary start-up, and their CEO no ordinary entrepreneur. Spectrum speaks with Jim Fruchterman to find out all about his company's mission.

One potentially profitable technology is the plug-in hybrid car, a technology which has been talked about by US President George W. Bush. Spectrum's John Voelcker brings us a reality check, however. There are no batteries capable of producing the power required by such a vehicle, nor those that can stand the heavy demands of such a power cycle.

Finally, a buyer's guide for the latest generation television displays. We've all heard terms like LCD, Plasma and DLP, but what do they mean. What are the advantages of one over the other? Find out what some of the advantages and drawbacks are of the latest television technologies.

This program was originally broadcast on IEEE Spectrum Radio.