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)
Continuity mistake: After Cissy and Danny leave for the concert, when Sharon follows the twins into the kitchen she's wearing tan pointed toe pumps, but in the next shot Sharon places her purse on the kitchen counter then heads toward the table, and now she's wearing very different shoes (the actress is wearing some type of fringe moccasins). (00:09:15)