I'm totally going to own that the homoerotic undercurrent of the History Channel series Vikings is one of its biggest draws. But the series is more than just Viking beefcake. It's informed by what modern archeology and anthropology tell us about Viking culture. The details in everything from clothing and hairstyles, to weapons and ship-building, to deities and gender roles–while not perfectly historically accurate–are just awesome.
It also does a great job at presenting the alienness of now-extinct warrior culture, both to the Christian Europeans they encountered, as well as to the modern American viewer. Mostly, though, the series has complex characters and a strong storyline. And thankfully, there are no horned helmets.
Season three of the series is coming in 2015.