Smallville (2001)

Trivia: Clark always wears blue and red clothes (or at least one of these colors). No surprise that when he got his Superman costume, he chose those same colors.

Trivia: In the Episode "Flash" when Clark confronts the Flash in his hotel room, he reads off the fake I.D.'s Jay Garrick, Barry Allen and Wally West. Those are the secret identities of the first three men to be called the Flash. Also, this Flash says his name is Bart, like Bart Allen, the teen hero formerly known as Impulse and currently being called "Kid Flash." (00:10:35)

Trivia: Despite many hours of outdoor farm work, Clark never gets a tan or a sunburn. In fact, Tom Welling, who plays Clark, is contractually forbidden from getting a tan, because the show creators were not sure if Kryptonians could tan.

Crusade - S4-E1

Trivia: Martha makes a remark suggesting she thinks Bridgette Crosby and Dr Swan are together to which Bridgette comments "In another lifetime." Bridgette is played by Margot Kidder, who played the original Lois Lane, Prof Swan was played by the late Christopher Reeve. A nice touch I think.

Hourglass - S1-E6

Trivia: When Lex visits Cassandra and asks her to see his future, she sees a vision of him in the White House. This is a reference to the modern-day Superman comic books, in which Luthor is now the U.S. president.

Trivia: Michael Rosenbaum is the only actor to play both an enemy and ally of Superman in two separate TV series at one time. In addition to playing Lex Luthor in "Smallville," he is also the voice of The Flash in the cartoon series "Justice League."

Trivia: Jerry Siegel, the co-creator of the Clark Kent/Superman character worked on a school magazine when he was at Glenville High School, Cleveland. The magazine was called The Torch - the same name of Smallville High's school magazine, edited by Chloe Sullivan and with Clark Kent as an on/off contributor.

Trivia: It has been stated that Clark mainly wears blue and red which are obviously the colors for Superman, but something that is less obvious is that Clark's parents Jonathon and Martha do the same thing. Martha mainly wears shades of red and Jonathon wears shades of blue.

Craving - S1-E7

Trivia: The Smallville Torch that Lex views on the internet has two articles that refer to past episodes. Pete wrote an article about his trip in a limo called Take Yourself Out Of The Driver's Seat ("Hourglass") and Chloe reprinted The Most Controversial Speech Ever Given In Smallville by Lana's mother ("X-Ray"). (00:17:45)

Trivia: In the episode where Aquaman appears, he says, "We should start a JLA," (Junior Lifeguards Association). This is funny because he and Superman are later on a team Justice League of America.

Exodus (2) - S2-E23

Trivia: Throughout this episode, the Superman theme tune can be heard at various points being played very softly and slowly. The first time it is heard, it is only the first few opening keys, but the last time it is heard, it is fully played.

Trivia: Annette O'Toole who plays Clark Kent's mom also played the role of Lana Lang in the Superman III movie.

Trivia: In the episode where Clark is lured to the asylum when Lex is with some of his former enemies, Jonathan Taylor Thomas' character taunts Lex while holding a newspaper with a headline starting, "Themysciran princess" and some other words. That is a reference to Wonder Woman, who is from Themyscira.

Slumber - S3-E4

Trivia: All the music in this episode is by the band REM. Which is fitting as REM stands for "Rapid Eye Movement", the deepest part of sleep, where dreams occur.

Action - S7-E5

Trivia: The alias that Lois uses when breaking into Lex's office is Sadie Blodgett - this is an alias Lois uses in issue 101 of the silver age comic series "Superman's Girlfriend Lois Lane". (00:18:00)

Pariah - S4-E12

Trivia: At the end, when Clark is visiting Alicia's grave, there is another grave shown with the name Allison Dunn on it, which is the name of Smallville's set decorator.

Trivia: At least two of the episodes in the series, "Shimmer" and "Jinx", are named after DC villains. Although they never fought the Man of Steel himself, both of them have fought Indigo, an android with some of Superman's DNA fused to her.

Shattered - S3-E8

Trivia: The asylum to which Lex is taken at the end of the episode is called "Belle Reve," which is French for "beautiful dream." It is also the name of the family mansion that once belonged to Blanche and Stella DuBois in "A Streetcar Named Desire." The mansion was lost, but it was the one memory to which Blanche clinged throughout her descent into madness. Belle Reve is also home to many lesser powered super villains in the DC universe, including some of Superman's enemies.

Action - S7-E5

Trivia: When the comics store is shown, one can see on display figurines of several other DC Comics characters, including Hawkman, Hourman, Doctor Mid-Nite, Starman, Mr. Freeze, Parallax, Black Canary, Robin, and others.

Lara - S7-E6

Trivia: Clark's biological mother Lara is played by Helen Slater, who portrayed Supergirl in the 1984 movie.