I watched this show last night. It didn't offer solutions at all, except that the military is prepared. I think they said only 1 out of 10 cars could be knocked out. I would like to hear that again to verify. Maybe they figure some cars would be in parking garages or in home garages or something. However, not brought out in the show is that congress recently approved $100 million to protect the electric grid from damage. Internet providers are building Faraday cages around their mainframe computers. The biggest problem they saw was the electric surge from all the power lines sending too much voltage over the lines, burning out transformers, and going into homes and businesses and burning out their computers and electrical appliances.
Only way I see to protect yourself is: 1) Make your house a Faraday cage and ground the wire or metal roof. 2) Unplug or buy expensive surge protectors for your appliances and computers. 3) Ground your vehicles when not in use. 4) Or buy old vehicles using points, condensers, and carburators. 5) Buy older diesels without electronics. 6) Have a grounded backup generator. 7) Have a large storage of food and water or a water purification system.
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Have a rural place where you can live off the land.
They did say things could get desperate after 3 days in the large cities with no water and food. They said large cities only have a 3 day supply of food at any one time. They rely on the distribution system of automated food processing plants, vehicle transportation, and refrigeration. If all three are down, there will be a mass exodus to the countryside in search of water and food. Sewage will get backed up etc. Disease and death will be massive. So the further you get from a large city the better. If people have to walk somewhere, it will take them days which only takes 30 minutes or an hour by vehicle now. The strong, gangs, etc, will take any vehicle that runs, and steal any food or guns the city folks have. If they do take a running vehicle and make it to the country, you and your country neighbors will have to fight these guys off.