This version of Robin Hood has echoes of today's political climate. War veteran Robin returns home from the Middle East to find that civil liberties have been suspended in the name of peace.
I Tivo episodes to watch with my 7- and 9-year-old sons -- not only because it's on past their bedtime, but also so I can skip through commercials for racy shows and natural male enhancement products. This also lets me talk with them about what they're seeing. The situations can be a bit much for elementary-age kids to watch on their own.
The Sheriff is the most intriguing character -- all jolly cruelty. Gisborne sometimes seems conflicted; he wants to be a good man for Marian, but he also wants power and thus goes along with the Sheriff. Marian feels constricted by social expectations. And the relationship between Much and Robin offers opportunities to talk about the nature of friendship and leadership.
All in all, this is a good series for kids who like adventure and derring-do. I'd just recommend watching it with them and zapping the commercials.