<p>This is what I know about it, yes it is vague:
It is offered to MCS and HSS students.
You get to room in New House your first year.
You get special lectures and seminars from professors.
You get a different advisor than you would normally have (not necessarily better or worse)
You need to take a few different classes than the regular kids; if you are in MCS you will need to take a few extra humanities classes and vice versa, and I think you have an easier time registering for these classes.
It will say Humanities and Science Scholar on your diploma.</p>