Mythbusters Season 9 is in order, despite every other season being missing episodes and out of order very badly. Hopefully the new seasons will be uploaded in order as well! This concludes all 9 seasons that are currently on Netflix instant stream.
Mythbusters Season 9: In Order
Mythbusters Seasons 1-9 Stats:
77 Episodes out of order
85 Episodes missing (plus 3 pilot episodes)
17 Episodes in order (12 of which are the in-order Season 9)