Before I managed to fully distinguish the model graphics of the SpongeBob seasons [Season 1], [2-3] and [4-7-present], I briefly thought that this may have been one of the last episodes of season one or one of the first of season two as there weren't any extremely obvious details that answered my question without the Internet - [Patrick's flowers on his shorts are darker in Season 1], [Sandy's tail is not seen when wearing her water suit in Season 1 and her suit has 3 dots instead of a nut], [The seeds on the Krabby Patties are usually black in Season 1 but are white in Ripped Pants, Pizza Delivery and most episodes in Season 2 onwards]. Pizza Delivery lacks all of these obvious details which made it hard to distinguish in addition to the traditional Season 1 sound effects, graphics and voice pitches.