Discovery is airing a special Holiday Mythbusters episode tonight, and it is not part of the normal series so a Mythbusters Season Pass will NOT record it. I just caught my box not recording the 10PM airing, and manually set it to record at 2AM. If you miss it tonight, it is airing again on 12/9 at 9PM, and 12/10 at 1AM, and then again on 12/17 and 12/18. All times Eastern. Note that this is in *addition* to the regular episode that aired tonight. There were two hours of Mythbusters tonight - so don't think you got the special because you got the normal episode.