This is an amazing project! I’ve been a collector of the Simpsons for years and
always wondered why such a classic show was never given a proper restauration;
especially in regards to the “line flickering” / “Klasky Cuspo” effect.
Regarding the “Telltale Head”, the german DVD has the complete scene as aired back in
1990. The only difference between these two versions, aside from Barts longer speech,
is Homer walking across the screen in the final shot before the credits - this is part
of the shorter version and is missing in the other. You could create both versions
separately or make it an “integral cut” with the longer speech and Homers walk combined.
I have the german DVD right here on the shelf. Would the longer version of the “Telltale
Head” be of any help to you?