Double-length final episode.
Writer Alan Bleasdale's daughter Tamana has a role as "Young Girl" in this episode.
This series finale was watched by 3.85 million viewers, making it the joint most-watched programme on Channel 4 that week. It was tied with a broadcast of A Few Days in Weasel Creek (1981) on June 26th, which also had the same amount of viewers.
This is the only episode where Henry (Elvis Costello) has a line of dialogue: "One of our - one of our trains is missing." In his two previous appearances he'd either been silent or just made train noises.