Arc of Infinity (3) Doctor Who : Season 20 Episode 3
TV-PG BBC Television 25m
Aired: January 11th, 1983 @ 5:15 PM EST on BBC Television
Something seemed amiss about the Doctor's execution, so the Castellan has Commander Maxil discreetly but fully look it. Meanwhile, as the Doctor meets the anti-matter being inside the Time Lord Matrix, Tegan and her cousin's friend run afoul of a bird-like alien back on Earth.
