Because the initial airings of Best Wishes 1 and Best Wishes 2 did not have a Live Caster segment, the first time Best Wishes 3 aired, it used the segment from Best Wishes 1 rather than its standard segment. This presumably is because that segment introduces the Live Caster itself, and the writers wanted it to be the first to air.

Pokémon Live Caster & Senryu
Theme	The first Pokémon a beginning Trainer chooses: Tsutarja (ツタージャ), Pokabu (ポカブ), Mijumaru (ミジュマル)
Japanese	パートナー　みず・くさ・ほのお　まよっちゃう
Romaji	Paatonaa mizu kusa honoo mayocchau
Translated	Partner, Water, Grass, Fire, I can't decide