Alright, I didn't want to say this before, but you people who want them to make drastic changes, such as aging, you know shit. Maybe you're very intelligent people, but you know nothing about television. That is the absolute worst thing they could possibly do. Every other tv show in history is backing me up.
When the writing is bad, changing the core structure of the show doesn't help. If it did, every show where they went to Africa, or Japan or wherever would be a standout episode, which they aren't. New situations are not the key to improvement, all it is, is desperation.