"Numb3rs," 10 p.m. KFSN (Channel 47.1): While it is all of the "CSI" and "NCIS" shows on CBS that get the attention and high ratings, it's this series that manages to take the same crime solving and make it even more entertaining with a dash of intelligent writing. The use of math on "Numb3rs" to solve crimes adds up to a big success. There's also the added element of family that is in none of the other CBS crime dramas. Tonight, FBI agent Don Eppes (Rob Morrow) and his team are called in to investigate who is behind a deadly gambling ring that is running a high-stakes Russian roulette tournament. It is rare when a show can be this entertaining and have an educational element.