Day 3: 11:00 P.M.-12:00 A.M. - S3-E11
Trivia: When the CTU personnel are in a meeting and Adam brings a picture of Nina onto the big screen, the name next to the picture is Sarah Berkeley, which is Sarah Clarke's married name. Clarke has been married to Xander Berkeley since 2002.
Trivia: At around 5 mins 11 seconds into the episode, Vincent Nigel-Murrey and Dr. Saroyan are discussing the bones on the forensic platform. In the background of a shot of Vincent, the x-ray on the screen is of Homer Simpson's head in the middle of the screen, instead of a real human skull.
Trivia: Set in 1924, a set of publicity shots of the Series 5 cast members, new and old, were rolled out, and one shot in particular was quite revealing. Sitting on the mantelpiece behind cast members Hugh Bonneville and Laura Carmichael, who play the Earl of Grantham and Lady Edith, was a modern-day plastic bottle of water.
Trivia: Castle's Halloween costume is of Malcolm Reynolds, played by Nathan Fillion in the short-lived TV show "Firefly." Alexis asks him: "Didn't you wear that like five years ago?" Serenity, the film based on Firefly, was released 5 years before this episode aired.
The Alliance - S1-E4
Trivia: In the synopsis on the DVD, Jim Halpert is incorrectly listed as "John", the name of the actor who plays him.
Love and Cheese / Weighing Harold - S4-E7
Trivia: In 'Weighing Harold', when Arnold is in the comics store, there are comics in the background referencing other Nickelodeon shows, "Catdog" and "Spongebob Squarepants." The former had aired almost exactly a year before this episode did ('Catdog' premiered on 4/4/1998 and this episode on 4/7/1999). The later aired about a month after this episode.
Dad's Dead - S1-E2
Trivia: When Ken appears at the end of the episode and Tommy wets his pants, David Shatraw actually had relieved himself. The studio audience wasn't aware of it until he pulled his tie aside to look down at his slacks. (00:20:55)
Trivia: Author Tess Gerritsen, creator of the series of novels upon which the TV series is based, appears as an author at the mystery writer convention.
Trivia: Outside the greenhouse where the abducted kids are being held are posters for the Weak Alibis, the Missing Notes and Rough Sects, which were bands that either appeared or were mentioned in the season 2 episode "Stuck on You." (00:37:40)
Trivia: The 'dialysis machine' which Molly obtains from the GSC to use on her son is actually an Apple AirPort Extreme Wireless Router turned upside-down. (00:32:00)
Trivia: At the beginning of the scene where Clara persuades Rigsy to give her his chronolock, a poster can be seen on a wall in the background, reading "DeLorean" (a Back to the Future reference) in Aurebesh (the writing system from Star Wars). (00:25:00)
Trivia: One of the severed heads on a spike is that of former president George W. Bush. Before shooting the scene, George RR Martin asked writers and producers David Benioff and D.B.Weis to have a cast of their 3 heads to be put on the spikes, but for budget reasons they opted to get a box from HBO's warehouse with used severed heads. They noted that one was Bush's, but they put a wig on it and got away with nobody noticing. In the Blu-Ray commentary the producers revealed the story, and got a lot of criticism from the right.
The Guardian - S1-E5
Trivia: Stan Lee makes a cameo describing the Division's operative as being like a superhero. (00:07:00)
Trivia: Columbo's first name is never mentioned throughout the series. However in a few episodes, such as "Dead Weight", "A Matter of Honor" and "Death Hits the Jackpot" he flashes his badge and the name "Frank" can clearly be seen.
Trivia: The man that Ms. Gordon, Parole Officer mistakes for Magnum, and that later he admits "sort of look alike" is Tom Lupo, a stunt coordinator and most importantly Tom Selleck's stunt double for this very series. (00:22:35)
Trivia: The Observer appears in the hospital. The agents walk pass him on their way to see the dead man-baby. (00:09:20)
Kiseki no fukkatsu! Yuyo no cosmo - S1-E5
Trivia: When Seiya opens his eyes hearing Miho calling his name, behind her in the audience a particularly bored animator decided to put in some silly characters, including the Tin Man, the Lion and a girl with the look of Dorothy from the wizard of Oz. (00:19:20)