Bruce Timm, Character Designer and Producer, personally hand drew the piece of comic book art Kyle shows to Jimmy. He altered his own style to make the image resemble the work of Gil Kane, the original artist for the Silver Age Green Lantern comic.
The Guardians of the Universe are depicted wearing Green Lantern costumes as opposed to their traditional red robes from the comics. They will revert to the robes during their appearance in "Justice League."
Sinestro: Give me the ring!
Green Lantern: I can't get it off.
Sinestro: I will, after your death.
Green Lantern: Wait! Don't you want to talk first? You know, banter back and forth to show me your innate superiority?
Kyle: There must be someone better suited for the job, like him (points to Superman).
Guardian: The ring has chosen you, Kyle Rayner.
Kyle: But I'm just an artist. I doodle in the margins of notepads, I daydream about color and form and monster trucks. I live half my life in a fantasy world.
Superman: You sound perfect.
A minor correction - the uniform Kyle wears is the latest/final John Stewart uniform (after John, in the comics, unmasked and went to his own style uniform). This was also the uniform template for Justice League. It's also interesting that Kyle is recruited as Hal Jordan was in this episode, but Kyle's later appearance in Justice League notes he was recruited by John Stewart and trained by Katma Tui. Of the two, this at least addresses Kyle's Earth life as an artist.
Also of note: while never identified, the crook in the start of the episode bears a resemblance to Guy Gardner. Kyle also mentions during that encounter that he (Kyle) was a quarterback, which was actually in Guy's origin. So in a sense, Kyle has all of the GLs wrapped into him.
This episode was nominated for a Daytime Emmy Award for Outstanding Achievement in Music Direction and Composition.
It should be noted that the Kyle in this episode is a mix of Hal Jordan (The Silver Age Green Lantern) and Kyle Rayner (The current GL). He's an artist, is a little more laid back, meets Superman on one of his earliest adventures, and shares a name with Kyle however he wears Hal's outfit, has Hal's origin, looks like Hal more than Kyle, and fights Hal's major enemy Sinestro.
Though not actually a member of the Green Lantern Corp., Alan Scott is considered the first (ie: Golden Age) Green Lantern. Hal Jordan was GL II (Silver Age). Both John Stewart and Guy Gardner were also Green Lanterns of Earth prior to Kyle Raynor. Of course, all of this is from the comics not the series.
Oddly enough, the character design of Kyle Rayner (and his costume) have very little in common with the comic book counterpart.
Sinestro returns in two other WB animated series, namely in the Justice League "Secret Society (1)" episode, and Static Shock "Fallen Hero." He would appear in the third and last season of Justice League Unlimited as a Legion Of Doom member.
The title of this episode refers to the Green Lantern's code: "In brightest day, in blackest night, no evil shall escape my sight. Let those who worship evil's might, beware my power, Green Lantern's light!"
Comic Book: In the beginning of the episode, Kyle and Jimmy eat at a restaurant called Gil's Ristorante. This is probably a reference to Gil Kane who helped create the original Green Lantern
Comic Book: During the fight with Sinestro at Broome Airfield (named after John Broome, the first writer of the Silver Age Green Lantern comics) notice the name of Colonel Hal Jordan, the second Green Lantern, on the side of a jet.