The first episode of season 4, and now the series is renamed Pokemon: Johto League Champions.

The opening for this season is the first that does not include any clips from episodes.

When this episode aired on Cartoon Network's Pokemon Master Marathon on June 2, 2007, the Pokemon: The Johto Journeys had its theme song shown instead of the correct Johto League Champions theme. However, when this episode's title was shown, it was the correct format for this season.

Who's That Pokémon? Squirtle

Gym Line-Ups:
Ash: Cyndaquil, Totodile, Pikachu.
Whitney: Clefairy, Nidorina, Miltank.

From this episode on, episodes begin with a teaser instead of the opening credits. An extra break is also included before the tag scene.

The Pokémon seen in the Johto League Champions opening are (without the Pokémon in the stadium scene, which are all blurred) Cyndaquil, Totodile, Pikachu, Togepi, Vulpix, Meowth, Lugia, Igglybuff, Smoochum, Magby, Cleffa, Hitmontop, Articuno, Zapdos, Moltres, Gengar, Scyther, Miltank, Dragonair, Charizard, Blastoise, Houndoom, Rhydon, Steelix, Magnemite, Magneton, Aerodactyl, Scizor, Noctowl, Mewtwo, Mew, Entei, Ho-oh, Suicune, Umbreon, Onix, Weezing, Snorlax, Stantler, Nidoking, Ursaring, Sunflora, Heracross, Nidoqueen, Bellosom, Bulbasaur, Psyduck, and Staryu.

Whitney uses Clefairy and Miltank, the same lineup in G/S/C.

Lugia is the first legendary Pokémon to apper twice during the same opening. It appears in the first few seconds using Aeroblast on Team Rocket and then appears with the rest of the legendary Pokémon towards the end.

New Theme Song: "Born To Be A Winner"

This is the first episode since Riddle Me This where Ash lost the Gym Battle and it turned into a two part story.

Introduction: Whitney and her Miltank.

This episode represents many aspects of Goldenrod City, including the Gym, Department Store, Underground Path, including a short appearance of the Haircut Brothers found there, and the Magnet Train.

Splash is represented through the use of Clefairy's Metronome.

James learns the concept of "free samples".

In other languages
French: Bienvenue à Doublonville
Italian: Una grande occasione
Latin American Spanish: ¡Una Oportunidad de Oro!
Portuguese: Uma Oportunidade Dourada
Spanish: Una oportunidad en Ciudad Trigal

Title Pun: A Golden Opportunity

In Pokémon Gold and Silver after you beat Whitney, she cries.

James: Clefairy in produce!

Whitney: Maybe I only know where I'm going when I don't know where I'm going.

Ash: We're looking for a shortcut not a haircut.

Whitney: Come on guys, just follow me through the automatic... (Whitney runs into the Galleria entrance) Guess they're not automatic. (Whitney falls and does the splits)

Ash: (sees Miltank) Holy cow!