The Blind Auditions are indeed lengthy.  The actual taping usually runs about 3-4 hours (about the length of a sporting event - unless it's Soccer, but this is America).  However, there is also the check-in, security, transport to the studio, loading time, and the pre-show warm-up time.  So, It's good to plan about 6 hours of your day for the show.  We have food and drinks for purchase as well as restrooms available in our check-in/holding area prior to loading the stage.  We have restrooms and water at the stage as well.  We always suggest eating prior to attending the show - either before you arrive on site, or from one of the gourmet food trucks we have at the check-in area.