ALL-NEW "AMERICAN CHOPPER" SPECIAL BRINGS MOTORCYCLE MANIA BACK TO DISCOVERY CHANNEL, AIRING TUESDAY, JUNE 9 Tune-up your engines, motor fans and tune-in to a brand-new 2-hour AMERICAN CHOPPER special, airing Tuesday, June 9 at 9 PM ET/PT on Discovery Channel. Paul Teutul Sr. and Paul Teutul Jr., two of the most legendary chopper craftsmen, are back to conquer unfinished … [Read more...] about American Chopper Season 13? Discovery Sets Brand-New Special & Premiere Date