Okay, so you want to watch a good show through Netflix Instant watch (on Roku Box, PS3, XBox360 Wii or just your computer)...I suggest "Lie to Me*". Now this show currently airs on Fox but if you are like me, watching on a scheduled night is too hard.
The show follows the Lightman Group, a group of human lie detectors, who investigate crimes and other mysteries. Its more upbeat that the CSIs and Law & Orders. But who doesn't love figuring out crimes, right? Tim Roth plays Cal Lightman, the head lie detector; he plays the character a bit like Jack Sparrow from the Pirate movies--kinda drunk and swaying--but very likable and unpredictable male lead. The rest of the cast rocks the house too.
Check it out, if you get some time.