(S21E13) You’ll have to forgive me when I admit that I’m not familiar with all of the instances of the Simpson family history that have been presented over the years, as I’ve not caught all 453 episodes prior to this one. I also suspect that Lisa’s journey across the attic featured costumes and memorabilia from across the past 20 years, which would have been a nice touch for that lackluster anniversary 450th episode that...