This year PNB is celebrating the 100th anniversary of Jerome Robbins’ birth with a Jerome Robbins Festival. Artistic Director Peter Boal created two separate programs using seven of the twelve Robbins’ pieces in the PNB repertory. Tickets for the two programs are sold separately. It’s a lot of ballet for one weekend, but I think it’s worth attending both programs. If you have to pick one, Program A is a little easier to process. That said, I think I liked Program B best.