I agree. I'm a fan of 24 and those "we're going to expose the government" type of shows, but that is not what I tune in to see Jericho for. I want to see all the characters and how they are cooping with the attacks and having to work together to survive.
I don't know if you're already familiar with it but there was an excellent UK show in the 70s called "Survivors" (I know, I know - it wasn't a reality show, trust me!) about life after a catastrophic event.
If you're into survival drama and season 1 Jericho, I highly recommend it.
I know it's available on DVD in the UK. I think it's being released domestically at some point. There were five or six seasons.
One of my favorite shows ever...