Exeggcute evolves without a leaf stone which should be impossible. In the Japanese version, James even acknowledges this but it is omitted in the English dub.
Charmander evolves into Charmeleon.
When the Pokemon anime debuted in the United States, it was first shown in syndication. This was the last episode of the show to air in syndication before the show started airing the next episodes on Kids WB. Due to this, there was a near four-month gap between this episode and the next one as a result of Pokémon being moved to the Kids' WB! lineup.
Ash's remark about Misty's Goldeen outfit was originally an observation rather than flirting in the dub.
Misty originally doesn't compare Melvin to Ash about not knowing what he is doing. Instead, Ash merely reacts with surprise when she directly offers career advice to him.