The Doctor's nemesis, The Master, appears before the court from the Matrix. Classic clip from the 1986 fourteen-part story 'The Trial of a Timelord', starring Colin Baker as the Doctor. Subscribe here for more Doctor Who clips http://www.youtube.com/subscription_center?add_user=doctorwho The Brand New Doctor Who Website - http://www.doctorwho.tv Doctor Who YouTube Channel http://www.youtube.com/user/doctorwho Doctor Who Facebook: https://www.facebook.com/DoctorWho Doctor Who Twitter https://twitter.com/bbcdoctorwho This is a commercial channel from BBC Studios. Service & Feedback https://www.bbcstudios.com/contact/contact-us/