Discovery preems Mean Machines

Discovery channel's new 10-part half-hour series, Mean Machines, makes its debut on Thursday, Oct. 20 with two back-to-back episodes beginning at 9 p.m. The series counts down the toughest and meanest machines in history, from subs to transporters to cranes.

Discovery channel’s new 10-part half-hour series, Mean Machines, makes its debut on Thursday, Oct. 20 with two back-to-back episodes beginning at 9 p.m. The series counts down the toughest and meanest machines in history, from subs to transporters to cranes.