The radio series began in England in March 1978. The first series consisted of six programs, or “fits” as they were called. Fits 1 thru 6. Easy. Later that year, one more episode was recorded and broadcast, commonly known as the Christmas episode. It contained no reference of any kind to Christmas. It was called the Christmas episode because it was first broadcast on December 24, which is not Christmas Day. After this, things began to get increasingly complicated.
In the fall of 1979, the first Hitchhiker book was published in England, called
At roughly the same time a double record album was released, which was, by contrast, a slightly contracted version of the first four episodes of the radio series. These were not the recordings that were originally broadcast but wholly new recordings of substantially the same scripts. This was done because we had used music off gramophone records as incidental music for the series, which is fine on radio, but makes commercial release impossible.
In January 1980, five new episodes of “The Hitchhiker’s Guide to the Galaxy” were broadcast on BBC Radio, all in one week, bringing the total number to twelve episodes.
In the fall of 1980, the second Hitchhiker book was published in England, around the same time that Harmony Books published the first book in the United States. It was a very substantially reworked, reedited and contracted version of episodes 7, 8, 9, 10, 11, 12, 5 and 6 (in that order) of the radio series “The Hitchhiker’s Guide to the Galaxy.” In case that seemed too straightforward, the book was called
At roughly the same time, a second record album was made featuring a heavily rewritten and expanded version of episodes 5 and 6 of the radio series. This record album was also called
Meanwhile, a series of six television episodes of “The Hitchhiker’s Guide to the Galaxy” was made by the BBC and broadcast in January 1981. This was based, more or less, on the first six episodes of the radio series. In other words, it incorporated most of the book
In January 1982 Harmony Books published
In the summer of 1982, a third Hitchhiker book was published simultaneously in England and the United States, called
At this point I went to America to write a film screenplay which was completely inconsistent with most of what has gone on so far, and since that film was then delayed in the making (a rumor currently has it that filming will start shortly before the Last Trump), I wrote a fourth and last book in the trilogy,