Season 1
Episode: 1x01 | Airdate: Dec 30, 1977
Jeremy Brown starts his new job as the teacher of English as a Foreign Language class, and meets his students for the first time. A diverse group of ten foreign adult students in London, hailing from nine different countries. The Europeans consist of two au pairs, the flirtatious and beautiful Danielle (France) and prim and proper Anna (Germany); two young single men, Giovanni (Italy) and Max (Greece); and a laid-back middle-aged bartender, Juan (Spain), who speaks no English. The Asians consist of Su-Li, a revolutionary-minded secretary from the Chinese Embassy, Taro, a Japanese businessman, as well as three students from South Asia: Ranjeet, a devout Punjabi Sikh, Ali an unemployed Pakistani, and Jamila, an Urdu-speaking housewife who can't speak a word of English. The school principal, Ms. Courtney, nearly dismisses Mr. Brown immediately as she had requested a female teacher, but he is allowed to stay on a trial basis.
Episode: 1x02 | Airdate: Jan 6, 1978
An education inspector arrives at the school to observe the classes, but Mr. Brown mistakes him for a new foreign student.
Episode: 1x03 | Airdate: Jan 13, 1978
Ranjeet asks Mr. Brown to help him escape an arranged marriage.
Episode: 1x04 | Airdate: Jan 20, 1978
Concerned that his students' English is not improving, Mr. Brown keeps them after class--so late that they are locked in.
Episode: 1x05 | Airdate: Jan 27, 1978
Jamila is arrested for shoplifting a magazine due to her misunderstanding the term "free" in promotional material. However, Mr. Brown and Ali later discover that Jamila has shoplifted many other items in the past. Mr. Brown and his students then work together to return the stolen items without being noticed.
Episode: 1x06 | Airdate: Feb 3, 1978
It's Mr. Brown's birthday and everyone in the class has brought him a present. However, it's not all happy returns when Ms. Courtney informs Mr. Brown that his trial month is over and she is not satisfied with his teaching. However, she finds out that the new teacher is taking over the school and brings Mr. Brown back.
Episode: 1x07 | Airdate: Feb 10, 1978
In order to see how prepared they are for their upcoming exam, the students prepare to take a mock exam. But when the students see that their teacher has no faith in them, they decide to cheat in order to ace the exam and prove their progress.
Episode: 1x08 | Airdate: Feb 17, 1978
Ali and Su Li surprise the class when they announce that they're getting married. But Mr. Brown gets a much bigger shock when he finds out that Ali is already married and plans to take Su Li as his second wife.
Episode: 1x09 | Airdate: Feb 24, 1978
Mr. Brown becomes ill and cannot come to class, so, Ms. Courtney takes charge. However, the student's English is not up to her expectations, so she sends them away. They all pay a visit to Mr. Brown, each with their own 'remedy' to make him feel better.
Episode: 1x10 | Airdate: Mar 3, 1978
Juan brings his Russian sailor friend Boris, who has come to England to escape Russia, to Mr. Brown's class. Boris explains that he wants to stay in England to be with his English girlfriend. Everything seems to be going all right until the captain of a Russian ship comes to the classroom looking for his roaming sailor.
Episode: 1x11 | Airdate: Mar 10, 1978
Mr. Brown finds himself in a lot of trouble when Danielle tells Mr. Jarvis, a pestering Irish woodwork teacher at the school, that she is engaged to Mr. Brown. He soon finds himself running around the school in an attempt to squash the rumour, only to leave wrong impressions and ending up in the school gymnasium to box against the philandering teacher.
Episode: 1x12 | Airdate: Mar 17, 1978
At the beginning of the lesson, Mr. Brown asks the students to speak aloud for one minute on various topics. The class learns that Taro's childhood was very lonely because he never knew his parents. Mr. Brown sympathizes by telling the class the story of how he was left on an orphanage in Jeremy Street when he was a baby 30 years ago and therefore grew up without any parents as well. However Mr. Brown's mother and father may be a lot closer to him than he ever imagined.
Episode: 1x13 | Airdate: Mar 24, 1978
The students prepare to take their Lower Cambridge Certificate exam at the end of the first term. Mr. Brown has an encounter with a couple in the bar which might just come back to haunt him.
Season 2
Episode: 2x01 | Airdate: Oct 7, 1978
In the new school year, Mr. Brown has two new students, Ingrid and Zoltan. However, ten familiar faces who did not pass their exams return.
Episode: 2x02 | Airdate: Oct 14, 1978
It is announced that the Queen will be visiting the school, and Ms. Courtney gets overexcited about the event.
Episode: 2x03 | Airdate: Oct 21, 1978
Ms. Courtney is reunited with an old boyfriend whose intentions may not be pure.
Episode: 2x04 | Airdate: Oct 28, 1978
Ranjeet has been saving up his money to visit his mother for her birthday, but Mr. Brown loses it and the class works to get it back.
Episode: 2x05 | Airdate: Nov 4, 1978
Mr. Brown and his students are stranded in the countryside when their field-trip bus breaks down.
Episode: 2x06 | Airdate: Nov 11, 1978
Mr. Brown agrees to spend the night in Giovanni and Max's apartment while his is being painted.
Episode: 2x07 | Airdate: Nov 18, 1978
Ms. Courtney forces Mr. Brown to attend a charity dance, and he has to decide who to escort.
Episode: 2x08 | Airdate: Nov 25, 1978
The class have to prepare for the school's talent show. In the end, the class sings the Mind Your Language opening theme.
Season 3
Episode: 3x01 | Airdate: Oct 27, 1979
An affluent Arabian Sheikh enrolls his Scottish chauffeur in Mr Brown's class, who causes trouble for all the students.
Episode: 3x02 | Airdate: Nov 3, 1979
Danielle, who is an au pair, brings her boss' baby to class.
Episode: 3x03 | Airdate: Nov 10, 1979
Mr. Brown breaks his leg and is hospitalized. When Juan telephones the hospital, a miscommunication results in Juan thinking that Mr. Brown has died.
Episode: 3x04 | Airdate: Nov 17, 1979
Mr. Brown is offered a new highly paid job at another school and leaves immediately, only to learn that the offer has been withdrawn.
Episode: 3x05 | Airdate: Nov 24, 1979
All the students are brought to court for causing mischief in public. Ms. Courtney oversees the session, while Mr. Brown acts as their barrister.
Episode: 3x06 | Airdate: Dec 1, 1979
Anna's au-pair visa is set to expire; the others decide that she should marry Mr. Brown to become a British citizen.
Episode: 3x07 | Airdate: Dec 8, 1979
The school holds a fete, and Max is held responsible for hiring Arthur Mullard.
Episode: 3x08 | Airdate: Dec 15, 1979
Ali suspects that his wife is having an affair. Mr. Brown follows Ali's wife and finds that she is going to Ranjeet's house.
Season 4
Episode: 4x01 | Airdate: Jan 4, 1986
Episode: 4x02 | Airdate: Jan 11, 1986
Episode: 4x03 | Airdate: Jan 18, 1986
Episode: 4x04 | Airdate: Jan 25, 1986
Episode: 4x05 | Airdate: Feb 1, 1986
Episode: 4x06 | Airdate: Feb 8, 1986
Episode: 4x07 | Airdate: Feb 15, 1986
Episode: 4x08 | Airdate: Feb 22, 1986
Episode: 4x09 | Airdate: Mar 1, 1986
Episode: 4x10 | Airdate: Mar 8, 1986
Episode: 4x11 | Airdate: Mar 22, 1986
Episode: 4x12 | Airdate: Apr 5, 1986
Episode: 4x13 | Airdate: Apr 12, 1986