This isn't a survivalist site. It's a survival site. So it's aimed at surviving a plane crash or being lost say, not suriving a nuclear war.
Jericho is a cracking series (and why did they have Hawkins daughter kill that really gorgeous girl I want to know!).
But a realistic series it aint.

Nor is a lot of the advice on this forum.

The best thing about Jericho is that it deals with ordinary people reacting as they most likely would. The 'every man for himself' situation some people seem to expect wouldn't happen. People will react as, well; people. Treating a few days power cut like you are among starving end of the world survivors is going to get you into trouble.
But then again everyone might not be as saintly as the population of Jericho usually are.
Sift the views and decide for yourself.....
Simon