I can't re-enable the comments.
ua-cam.com/users/postUgkxRlcTSNJN88JO7At09IUyrqSStfK2tvlR
ポケットモンスター OP 1 めざせポケモンマスター (Poketto Monsutā - OP 1 - Mezase Pokemon Masutā)
This is the first variant of this opening, it was used from episode 1 to episode 2.
Including all variants, it was used from episode 1 to episode 80.
Note how the text at one point says "Foodin" but shows a picture of "Yungerer". This was fixed starting with episode 3.
This is from the Hulu version of episode 2.