We all use math every day
After NCIS and The Unit, one of my favorite weekly shows is Numb3rs. Only on American TV can a math geek catch criminals and score chicks! I also like the offline learning community built around the show, providing teaching aids based on the math techniques used in the show.
If you are a teacher, you might want to check out the blog here. Each episode review has a set of learning activities along with links to other activities and additional information.