About "Baseball Blues": That was one of the episodes I thought was going to have a guest star. Well, it didn't. Do the events in this episode contradict the events in "Arthur Makes the Team"? I know that they're a Little League team, and that the name of their team is the Grebelings.
About "Brain's Biggest Blunder": This episode has elements from "Buster Makes the Grade," "It's a No-Brainer," and "D.W., Dancing Queen." I don't think I've ever seen Mrs. Powers with light skin and brown hair before. I've seen her with dark skin and brown hair, and I've seen her with light skin and blonde hair. How many times have they had a character wear another character's outfit? It was interesting seeing Buster dressed like Brain. What's also interesting is that they remembered that his name was Steve.
So far I'm disappointed that I haven't found any more D.W./Brain parallels or possible allusions to sitcoms Leave It to Beaver, Get Smart, and Full House.