Trivia: It's in this episode that the Heimlich Maneuver is used for the first time by the paramedics. At the USC game, when a guy is choking on a hot dog, John and Roy are called, and John uses the Heimlich. Up until season 6 we've seen the guys use other methods, such as the ChokeSaver which look like huge white tweezers, to remove obstructions in an airway, as seen in 4x9, "Foreign Trade."
Trivia: Ted Cassidy, best known for his role as Lurch in the hit TV series "The Addams Family", did the opening narration for the show as well as the vocal effects for the Hulk. Sadly, Ted Cassidy died during production of Season 2. The Hulk's vocal effects were then done by actor Charles Napier for the rest of the show. Ted Cassidy's voice was still used for the opening narrations of all seasons.
Trivia: A clever, subtle hint as to Mason's guilt - Columbo arrives at the animal pound just in time to stop him feeding Laurel and Hardy (the dogs he trained to kill on command) a large amount of chocolate treats. He has planned this murder meticulously, and he would be aware that chocolate is extremely toxic to dogs. The amount he is planning to feed them from the bulging bag of large chocolate balls he is holding would kill both dogs within hours if ingested.
Band Candy - S3-E6
Trivia: The accent that Giles uses as his teenage self is Anthony Head's natural accent.
Trivia: Although Len Cariou plays Tom Selleck's father, he's only five years older than Selleck.
Trivia: There were no American planes shot down over the Sea of Japan during the Korean conflict. It is rumoured that producer/director Larry Gelbart knew that, but wrote Henry Blake's death scene as he was very unhappy with the way Mclean Stevenson had left the show, and was determined to make it clear that there was no way he would be coming back.
Trivia: Brooke Adams, Tony Shalhoub's real-life wife, has appeared on the show 5 times. In S1 as Leigh the flight attendant Monk drives crazy in "Mr. Monk and the Airplane"; in S3 as Mrs. Carlyle in "Mr. Monk and the Kid"; in S5 as Sheriff Butterfield in "Mr. Monk Visits a Farm"; in S7, again, as Leigh the flight attendant in "Mr. Monk's 100th Case"; in S8 as the crazy cat lady in "Mr. Monk and the Badge."
Trivia: Sharon Lawrence plays Sasha Alexander's mother in the series, even though in real life she's only 12 years older than Alexander.
Trivia: Ben Sullivan, Dr. Cox's best friend and brother-in-law, loves his camera and takes pictures everywhere he goes. Brendan Fraser, who plays Ben, has a great interest for photography in real life.
Trivia: Katie Holmes is the only actor/actress who appears in every episode.
Goodbye (1) - S2-E4
Trivia: The first episode to air following John Ritter's death, it was filmed without a laugh track or live studio audience.
Trivia: Johnson's script originally featured an ending in which Jesse loses the game and yet finds himself still alive. Seeing this, Fats explains that he will die "as all second raters die: you'll be buried and forgotten without me touching you. If you'd beaten me, you'd have lived forever." This ending was eventually filmed when this episode was remade in 1989, during the first revival of The Twilight Zone.
Trivia: Holly Marie Combs's real life pregnancy with her son Finley Arthur Donoho was mirrored by Piper's pregnancy with Chris in this season.
Trivia: While everyone is at the table eating supper and talking, little John Curtis taps on John's shoulder, then John turns and asks "What?" John Curtis points to his pants and excitedly says, "I got new pants," and John says, "I see that. Who got you those? Your mommy?" Then John Curtis looks offscreen, away from the other actors on set, and replies, "No, from Pat," (no characters named Pat are on the show) and without missing a beat, John responds, "From Pat? Where does she live? On the next farm?" And John Curtis answers, "Yeah," amidst all the giggles we can hear, so John answers with a smirk, "Okay, good!" This is such a hilariously precious unscripted moment, and great they decided to leave it in the episode. (00:26:15)
Trivia: The book that Sam reads is The Outsiders, Ralph Macchio starred in the film version.
Papa's Got a Brand-New Excuse - S4-E24
Trivia: At the end of the episode, as the camera zooms in on the statue on the table, Karyn Parsons can be heard crying backstage.
Trivia: Scully's father, Scully's older brother, and the man Mulder thought was his biological father were both named William. (The father who raised Mulder went by "Bill, " as did Scully's brother.) Mulder's actual biological father, Cancer Man, was played by William B Davis (who also goes by "Bill"). Scully and Mulder's son was also named William (before being adopted and having his name changed to Jackson).
Trivia: Mischa Barton also played the dead girl who threw up in The Sixth Sense.