1st Doctor Era (Black and white only): Season 1. I"ll do a general rundown of the episodes of this season.
An Unearthly Child: (4 episodes): I liked the first episode, but not episodes 2-4 of this story. Some dr who fans give episodes 2-4 a separate title such as the tribe of gum, ect, since the first episode is a separate story to episodes 2-4. Also in this era there was, as of yet, no overall story name, each individual episode had it's own title. Also this is the period before the 1st doctor was a hero figure, he is what some call an anti hero, or maybe even villainous to an extent.
The Daleks (7 episodes): Not sure if you like daleks or not. I don't personally, but it seems every other dr who fan but me loves them for some reason. But, overall I liked this story, though some elements of it make no sense. Dalek fans may like this 7 episode story. I didn't mind it overall. Unlike some other long stories it doesn't seem to drag or have to much padding. Though That maybe in part since I don't watch all the episodes all at once in 1 sitting like some do, but 1 dr who episode a day. Overall I'd say an ok to interesting story,even though the daleks are in it.
The Edge of Destruction (2 episodes): not to good, and odd at times, very odd. Though the end of this is the turning point where the doctor becomes the hero type figure most know the 1st doctor to be.
Marco Polo (7 episodes) Totally lost, all 7 episodes are lost. Only some telepics, promotion stills & audio available. I watched a loose cannon reconstruction and didn't like it much. Way to much padding and it drug a lot. Also it is the first of the historical, where no aliens appear, and the only sci-fi element is the tardis, which is not seen much, though more then in other historical. The only aliens that appear are the doctor and his grand daughter Susan.
Keys of Marinus (6 episodes): each episode is mainly stand alone with an overall story arc that ties them together. Overall I liked the story, but as in some dr who stories there are some spots that make no sense or are a bit weak.
The Aztecs (4 episodes): 2nd pure historical. The only sci-fi element is the tardis, seen at the beginning and ending. As in Marco Polo the only aliens seen are the doctor and Susan. Overall I liked it, though it did feel to me to drag, have some padding to stretch it out for 4 episodes.
The Sensorites (6 episodes): could not get past the first few minutes. I remember watching it decades ago, recently, a year or few ago, tried watching it again and still didn't like it.
The Reign of Terror (6 episodes): episodes 4 & 5 are lost. Never saw this but since it is a pure historical I'd guess it does drag and have a lot of padding. I may try watching an episode later on today to see what I think, but in general I don't like the pure historicals much. The last story of season 1.
