I completely agree with vibeke-2's review, this is an excellent show, refreshingly intelligent and free from gratuitous profanity and gore. David Krumholz and Judd Hirsch are the best, though I think Rob Morrow's part could've been more developed by the writers. That being said, I looked forward to watching this program every week. The interplay of characters, tempo and the inventive lighting (cool blue/gray for the FBI office, warm tones for home and old university math dept office} make for a refreshing hour's time-out each week. I was sorry it ended its run last May. The math-explanation segments can go a bit fast, but are visually illustrated as well, invaluable for non-mathematicians like myself. *I've heard episodes are shown at universities to teach math.
Review of Numb3rs
