A bad Gracie Films logo plaster...
Tonight I was watching the classic Simpsons episode "Like Father, Like Clown", in memory of comedian Jackie Mason, who passed away very recently at age 93. While it was great to see again, something caught my attention when watching the end credits. You know how on the Disney+ prints of the pre-2009 episodes presented in their original 4:3 aspect ratio plaster the original 1987 Gracie Films logo with the enhanced 2009 version? Well, on this particular episode, when the credits finish, the original Gracie Films logo can be seen for a split second (like on the DVD releases) before suddenly cutting to the newer logo! Of course, the soundtrack from the original logo is retained, so it can be fairly easy to miss.
"The Simpsons" footage © 1991 FOX and Disney; FAIR USE!