Interviews are usually done through a panel of administration and other professors. It took about an hour including a demonstration and question and answer period. In addition, the staff will take you on a tour of the campus as well as a meet and greet with other staff and administrators.

It was pretty easy. Simple and quick phone interview, then fairly low intensity in-person interview (how do you deal with student engagement, etc.), and a final 20 min teaching session (on topic of choice) for a couple deans. Of course, the person who hired me left shortly after I got hired (turn over is really high) so things may be different for you!