Numb3rs(CBS, tonight, 10 p.m.): An apparently routine drive-by involving a young rap star turns out to have wider implications. I can't say I ever expected Three Six Mafia to pop into the Epps brothers' world, but such is the excitement of primetime TV.

http://www.film.com/tv/story/what2watch-brothers-sisters-add-subtract/13982602/20757914