Season 21
The Twin Dilemma, the first story with Colin Baker as the Sixth Doctor, aired last in the season. This season saw the departure of companions Tegan, Turlough and Kamelion and introduced Peri. Most episodes were the traditional twenty-five minute length. However, due to coverage of the 1984 Winter Olympics, Resurrection of the Daleks was re-edited before airing and shown as two forty-five minute episodes.
All Episodes
S21 E1: Warriors of the Deep (1)
S21 E2: Warriors of the Deep (2)
S21 E3: Warriors of the Deep (3)
S21 E4: Warriors of the Deep (4)
S21 E5: The Awakening (1)
S21 E6: The Awakening (2)
S21 E7: Frontios (1)
S21 E8: Frontios (2)
S21 E9: Frontios (3)
S21 E10: Frontios (4)
S21 E11: Resurrection of the Daleks (1)
S21 E12: Resurrection of the Daleks (2)
S21 E13: Planet of Fire (1)
S21 E14: Planet of Fire (2)
S21 E15: Planet of Fire (3)
S21 E16: Planet of Fire (4)
S21 E17: The Caves of Androzani (1)
S21 E18: The Caves of Androzani (2)
S21 E19: The Caves of Androzani (3)
S21 E20: The Caves of Androzani (4)
S21 E21: The Twin Dilemma (1)
S21 E22: The Twin Dilemma (2)
S21 E23: The Twin Dilemma (3)
S21 E24: The Twin Dilemma (4)