season 1	42 episodes + Pilot (originally untransmitted )	(23/11/63 - 12/09/64)	(A - H)
season 2	39 episodes	(31/10/64 - 24/07/65)	(J - S)
season 3	45 episodes	(11/09/65 - 16/07/66)	(T - BB)
season 4	8 (first doctor) episodes	(10/09/66 - 29/10/66)	(CC - DD)
	134 episodes + Pilot

S 1	exist	title	eps.	info(*until zz each episode has an individual title)	availability
Pilot		An Unearthly Child	1	transmitted 1992 - episode varies little in content to the that in (A) slight costume/wording changes.	BBC2 PRV
A		*An Unearthly Child	4		PRV
B		*The Daleks	7		PRV
C		*The Edge of Destruction	2		BSB
D		*Marco Polo	7		N/A
E		*The Keys of Marinus	6		BSB
F		*The Aztecs	4		PRV
G		*The Sensorites	6		UKG (e)
H		*The Reign of Terror	6		N/A

S 2		title		info	availability
J		*Planet of Giants	3		UKG
K		*The Dalek Invasion of Earth	6		PRV
L		*The Rescue	2		PRV
M		*The Romans	4		PRV
N		*The Web Planet	6		PRV
P		*The Crusade	4
Q		*The Space Museum	4		UKG
R		*The Chase	6		PRV
S		*The Time Meddler	4		BBC2

S 3		title		info	availability
T		*Galaxy Four	4
T/A		Mission to the Unknown	1	often refered to as 'Dalek Cutaway'	Telesnaps
U		*The Myth Makers	4
V		*The Dalek's Masterplan	12
W		*The Massacre	4
X		*The Ark	4		UKG
Y		*The Celestial Toymaker	4
Z		*The Gunfighters	4		UKG
AA		The Savages	4		Telesnaps
BB		The War Machines	4		PRV

S 4		title		info	availability
CC		The Smugglers	4
DD		The Tenth Planet	4		1-3