This is a list of episodes in the animated series Pokémon, named Pokémon: Indigo League for their second DVD release. The episodes aired in Japan as Pocket Monsters (ポケットモンスター Poketto Monsutā?), covering the first season of the series about the adventures of series protagonist, Ash Ketchum and friends on the way to the Indigo Plateau. The episodes are directed by Masamitsu Hidaka and produced by Oriental Light and Magic and TV Tokyo.
Ash Ketchum is now 10 years old and is able to start on a new journey as a Pokémon trainer. On his first day Ash missed his alarm and a chance to get one of the three Kanto starter Pokémon:- Charmander, Bulbasaur or Squirtle. However Professor Oak had one last Pokémon at his lab, a Pikachu. At first Pikachu did not get along with Ash, however over the course of the season Ash gained Pikachu's trust and became best friends, developing a special bond. On the way Ash meets Misty, a trainer who loves water Pokémon and wants to join him until he'll pay for her bike which was destroyed during a battle, and Brock, the Pewter City Gym Leader who wants to join Ash on his journey so he can become the greatest Pokémon breeder. Ash catches and makes friends with many Pokémon which sets him up for a great adventure. However, through his journey he has to deal with the annoying Team Rocket and his childhood rival, Gary Oak, Prof. Oak's grandson who also is a Pokémon Trainer that always seems two steps ahead of Ash. After obtaining all 8 Kanto Gym Badges needed to compete in the Pokémon League at Indigo Plateau, Ash reaches the top 16, losing out to a close friend, Ritchie.
The division between seasons of Pokémon is based on the openings of each episode, and may not reflect the actual production season. The English episode numbers are based on their first airing in the United States in syndication, on the WB Television Network or on Cartoon Network. (Other English-speaking nations largely followed either this order or the Japanese order.) Subsequent airings of the English version follow the original Japanese order, except in the case of episodes which are no longer shown in English.
The first season ran from April 1, 1997, to January 28, 1999 in Japan. This season was shown on TV Tokyo. In the United States, it originally aired in syndication in 1998, from September 8 to October 30, but was moved mid-way through the season to Kids' WB!'s weekday and Saturday morning line-ups on February 13, 1999 to December 4, 1999.
Seven pieces of theme music are used for the episodes; one opening theme and five closing themes in the Japanese version and a single opening theme and ending theme in the English one. The one Japanese opening theme is "Aim to Be a Pokémon Master" (めざせポケモンマスター Mezase Pokémon Masutā?) by Rica Matsumoto, used in the episodes from 1 to 85. The five closing themes are "151" (ひゃくごじゅういち Hyakugojūichi?) by Unshou Ishizuka and Pokémon Kids, used in the first 27 episodes. "Nyarth's Song" (ニャースのうた Nyāsu no Uta?) by Inuko Inuyama, used in episodes 28 to 37 and returning for episodes 65 to 68. "Pocket Fantasy" (ポケットにファンタジー Poketto ni Fantajī?) by Sachi & Juri, used in the episodes 38 to 53. "Pokémon March" (ポケモン音頭 Pokémon Ondo?) by Sachiko Kobayashi, used in episodes 54 to 64. "Type: Wild" (タイプ: ワイルド Taipu: Wairudo?) by Rica Matsumoto, also used in episodes 69 to 83. The opening and ending theme for the English airing is "Pokémon Theme" by Jason Paige, used in all episodes of this season.
The episodes of this season have been released in 26 individual DVDs and VHS between December 13, 1998 and January 23, 2001. Between 2006 and 2008, Viz Media re-released episodes of the season in three DVD compilations. The first twenty-six episodes of this season were released on DVD on November 21, 2006, with "Beauty and the Beach" being skipped. The second part of the first season came out on November 13, 2007, with the third and final part released on February 12, 2008.