- Archive Panic: With over 2400 episodes having been made over the course of 27 years, any first time viewer who is tempted to start watching the series from the very beginning may find themselves facing a daunting task ahead of them.
- Ensemble Dark Horse:
- You guessed it, Jo Masters.
- Burnside was a relatively minor character during his original guest appearance, albeit one who acted as antagonist for the regulars. Chris Ellison's performance was so good that he was invited back to become a regular in season four, and if you ask the person in the street about their memories of The Bill, invariably they'll involve him.
- Harsher in Hindsight: Kevin Lloyd's character, DC Tosh Lines, was written out (Lloyd had been sacked for drinking problems) as having accepted a job at the coroner's office. The actor died a week later.
- Harsher in Hindsight / Hilarious in Hindsight: Any time DI Neil Manson worked on a child abuse case - Andrew Lancel would later be tried (and acquitted in 29 minutes) for child sexual abuse.
- Magnificent Bastard: Gabriel Kent and Don Beech were both utter bastards, and magnificent at it.PC Rosie Fox You bastard, Eddie.PC Eddie Santini My friends usually call me "clever bastard".
- Most Annoying Sound: "No comment." Made even more annoying whenever it crosses with Broken Record.
- Never Live It Down: One of his early episodes established that Jack Meadows was demoted back to DCI after failing to supervise a corrupt officer under his command. This "career glitch" (as Chief Superintendent Brownlow once called it) would occasionally pop up again in later years whenever Meadows tried to seek promotion. His inability to supervise corrupt officers also became something of a running theme, with him becoming increasingly more paranoid as people like Don Beech, Zain Nadir and Sergeant Stone ran rampant under his command...
- Not as You Know Them: WPC Page was written out of the series in 2002, following her role in the 'Dave Quinnan' exit storyline. Then she was brought back a whole year later, having supposedly been "on leave" for all that time, only to immediately be plunged into a storyline where she committed murder and lost her job as a cop. And THEN she was brought back again a few months later as a "civilian" worker at the station, where what little dignity the character still had left was systematically removed, before she was finally dumped for good in early 2004. To anyone who grew up watching the optimistic and lovable WPC Page of 1992-2001, it was like we were watching the same actress playing a completely different person.
- Seasonal Rot: The show's transition to Crime Time Soap was NOT taken well by old fans of the show, neither was the desicion around 2000-2001 to kill off or Put on a Bus many of the senior characters like Chief Inspector Conway.
- Ships That Pass in the Night: Virtually every romantic storyline between any two of the police officers.
- WTH, Casting Agency?: Charles Tyrell in the Episode Warm Bodies, Part 2 is Portrayed by Jeremy Barrett, better known as Mr.Rabbit from The Animals Of Farthing Wood, however, in real life he was a Lie Detector, in this episode he is a Lawyer, so it should have made sense for him to be a Lie Detector.
YMMV / The Bill