"Fourth Annual Talent Show" script, Scene E

Yes, we're already at the tag scene, since this script has a mere five scenes.  It's still the Shotz Auditorium, later that night.  "The stage is empty, Laverne and Shirley are slowly walking out, looking exhausted."  Laverne's "We were good" was added, as was her "I can hear," when Shirley says, "He liked it."  But otherwise, except for the girls originally running off rather than strolling off, the scene was unchanged.

Of the six scripts I've examined so far, this seems to have been the most intact, although even here things were tweaked before filming.