User blog comment:Arthurlover7/What is your favorite episode of each season?/@comment-5484578-20130127174537

i do like most of the episodes from each series, but if i had to pick only one for each series then i would pick:

series 1-the poisoned chalice

series 2-the curse of cornelius sigan

series 3-the eye of the phoenix

series 4-a servant of two masters

series 5-the diamond of the day part 2