Sean Murphy commented
Alfred has a little family reunion, right?
Panels from Batman #216 (November 1969), script by Frank Robbins, pencils by Irv Novick, inks by Dick Giordano
And...that's actually absolutely correct, Sean, and you get a Bruce Wayne-endorsed Bull-Prize (not valid in Metropolis).
But actually, it's not the big reveal I was thinking of. Batman #216 is the first time that we learn Earth-1's Alfred is surnamed...Pennyworth!
But yes, there's a family reunion, and it goes about as well as most family reunions.