VANCOUVER — Thunderbird Entertainment Group announced today production is currently underway on a second spin-off of the Highway Thru Hell franchise for Bell Media’s Discovery channel. The working title for the new original factual series is Mud Mountain, and Discovery has ordered eight one-hour episodes, says the news release. The series is produced by Great Pacific Media, Thunderbird’s factual division, and Bell Media Studios. Bell Media will handle worldwide distribution for the series. Mud Mountain is set in the high mountains of British Columbia, just down the road from the Highway Thru Hell, where giant logs and bigger pay days...