Batman Stands Pat (2) - S1-E14
Continuity mistake: Batman's plaster-covered costume gets an instant dry cleaning en route as he drives from the sculptor's studio to the batcave. (00:05:00)
Continuity mistake: In "The Unsinkable Mr. French" (season 5), the amount of whipped cream on Mr. French's jacket increases as he's getting up from the couch. (00:23:00)