Just caught up with the show so far. Rumour has it, it will return some time due close from now. Anyway, I love the show's geek-tribute-estique, and deliberately flawing every character to pieces makes for great attachment (only other show i can think of that does something similar is Futurama). Every season seems to get better, if only for the fact that the character building gets deeper all the time (season 4 had a LOT going on within nearly every character). A bit weird to think the show has been running for 9 years and only produced 4 seasons so far, but at least it gives something to look forward to...