at the Beacon and Radio City they are 4 wall rental. so everything must be done, the hanging of the lighting package takes a day...
I still go back to that night at the URIS theater.
my call was 8am on Sunday
we were there all day, (food brought in, no break)
TONY show that night
strike after the show
restore the backstage for the host show.
So yes in the old days it was a one day event.
that being said I am sure the show rehearsal was at 890 broadway or at the old Minskoff rehearsal hall?
Then the dress at the Uris.
I remember also, this is a bit hazy, each show that was doing a musical number had an hour to stage and light at the Uris.
the kids came in street clothing, and did the tech,
then went to their home theater to get ready for the broadcast.
Mary Martin told me the story of her Tony at the Waldorf Astoria Hotel's ball room,