Here it is!
3rd Logo (Hey Arnold! 1st Custom Logo)
(July 10, 1996)
Nicknames: "The Arnold Logo 1", "Arnold and Friends"
Logo: On a slate gray background, we see the big dodger blue letters "GAMES ANIMATION INC." in stacked words. Around the screen, we see the following characters (starting from the top right, going counterclockwise): Gerald (who is waving), Harold (with a scared look on his face), Arnold (looking bored), and Helga (cross-armed with a scowl). They all wear completely different outfits than in the regular show, since this is taken from the pilot episode of Hey Arnold!
Trivia: If you look closely on the bottom right of Arnold's head, you can see Craig Bartlett's initials.
Music/Sounds: The end theme of the pilot, along with the sound of two boys hitting each other, taking turns yelling "Ow!", which was also from the end of the pilot.
Availability: Rare. It was only seen on the pilot episode of Hey Arnold! This pilot was originally debuted in theaters before Harriet the Spy, the first Nickelodeon movie release, and, is strangely not on the Harriet the Spy VHS, however, the pilot was released on VHS. Ironically, the pilot episode was remade as part of the said show as "24 Hours to Live".
Scare Factor: None.
4th Logo (Hey Arnold! 2nd Custom Logo)
(October 7, 1996-February 10, 1997) Nicknames: "The Arnold Logo 2", "Arnold with the Chalk"Logo: On a red brick background with two green windows, we see the beau blue 3D text "GAMES ANIMATION INC", and on the bottom-right is Arnold holding a piece of chalk. There seems to be a spotlight on Arnold and the beau blue text.
Music/Sounds: The end theme of the show.
Availability: Rare. It's currently seen on season 1 episodes of Hey Arnold! on TeenNick. However, it can be found on DVD sets and, along with the Snee-Oosh, Nickelodeon and Paramount logos, on VHS releases of the said show. Season box sets of Hey Arnold! were recently released on DVD through Amazon.com, and the logo is intact on the season 1 DVD set.
Scare Factor: None.