I tagged this one as "Vietnam War" although it is set in the Korean war. It was common knowledge at the time that everything was really referring to Vietnam, but for political reasons they set it in Korea.
The second episode is a classic:
"Hapless cat burglars Eddie (Pemberton) and Ray (Shearsmith) break into a luxury house to try to steal a painting while Gerald (Denis Lawson) and Sabrina (Oona Chaplin), the couple who live in the house, argue. The episode progresses almost entirely without dialogue."
Kitchen sink realism is a British cultural movement that developed in the late 1950s and early 1960s in theatre, art, novels, film and television plays.
If you have never seen Blackadder I suggest skipping series 1 and begin at 2. In the first series the Blackadder was played with a different personality to the latter, and was generally considered to be inferior.
There are a lot of guest actors not included here who can be found on the Wikipedia page - https://en.wikipedia.org/wiki/List_of_Game_of_Thrones_characters#Guest_cast