Some sources state that the production played 23 Broadway previews, but it played only 22. Previews started on Friday, December 29, 1967. The production played a performance that night, a matinee the next day (but not evening performance), and a performance on New Year’s Eve (Sunday). It played no performance on New Year’s Day. It played seven performances Tuesday through Saturday that week. The following week it played a regular schedule of eight performances, and then it played four performances (Monday through Wednesday), before opening Thursday, January 18.
The production announced a Broadway opening date of January 6, 1968. In mid-December 1967, it was postponed till January 8, and then till January 18.
Some sources state that the production lost $1,000,000, and that it was the first Broadway musical to lose that much money. When it closed, however, Variety stated that it had lost $375,000 on an investment of $500,000. The Variety figure seems more likely to be in the ballpark.