1978

January

 * 07 - Underworld Episode 1 First Broadcast


 * 14 - Underworld Episode 2 First Broadcast


 * 21 - Underworld Episode 3 First Broadcast


 * 28 - Underworld Episode 4 First Broadcast

February

 * 04 - The Invasion of Time Episode 1 First Broadcast


 * 11 - The Invasion of Time Episode 2 First Broadcast


 * 18 - The Invasion of Time Episode 3 First Broadcast


 * 25 - The Invasion of Time Episode 4 First Broadcast

March

 * 04 - The Invasion of Time Episode 5 First Broadcast


 * 11 - The Invasion of Time Episode 6 First Broadcast

September

 * 02 - The Ribos Operation Episode 1 First Broadcast


 * 09 - The Ribos Operation Episode 2 First Broadcast


 * 16 - The Ribos Operation Episode 3 First Broadcast


 * 23 - The Ribos Operation Episode 4 First Broadcast


 * 30 - The Pirate Planet Episode 1 First Broadcast

October

 * 07 - The Pirate Planet Episode 2 First Broadcast


 * 14 - The Pirate Planet Episode 3 First Broadcast


 * 21 - The Pirate Planet Episode 4 First Broadcast


 * 28 - The Stones of Blood Episode 1 First Broadcast

November

 * 04 - The Stones of Blood Episode 2 First Broadcast


 * 11 - The Stones of Blood Episode 3 First Broadcast


 * Vivienne Bennett, who played Queen Elizabeth I in "The Chase," dies in London.


 * 18 - The Stones of Blood Episode 4 First Broadcast


 * 25 - The Androids of Tara Episode 1 First Broadcast

December

 * 02 - The Androids of Tara Episode 2 First Broadcast


 * 09 - The Androids of Tara Episode 3 First Broadcast


 * 16 - The Androids of Tara Episode 4 First Broadcast


 * 23 - The Power of Kroll Episode 1 First Broadcast


 * 30 - The Power of Kroll Episode 2 First Broadcast

Unknown date

 * May Warden, who played the aged Sara Kingdom in "The Daleks' Master Plan," dies.