"That's All Folks!" Question

[Do-Do]

What was the last cartoon in which Beans said "That's all folks!" on-screen? Also, when did "TAF" replace "So long folks!"?

[J Lee]

I believe "The Fire Alarm" was the last Looney Tune to include the Beans' "That's All, Folks!" sign-off. Avery's "Plane Dippy" debuted the script TAF closing titles.

As for the "So Long, Folks!" ending, I think it went out at the end of the 1934 release season, when the Merrie Melodies went to color full-time. That would make Hardway's "Rhythm in the Bow" the last cartoon to have it, while Freleng's "Those Beautiful Dames" was the first to use the LT closing tag line (and BTW -- They used the same voice for both the jester closing and for Beans' TAF sign-off)