This is when MTV airs a special, behind the scenes on what you could call a 'sucessful' show for younger viewers (a.k.a. soft pornography). The ratings were good enough for Undressed to continue on, as well as to have a casting call.

They do this huge casting call, with 100+ people auditioning for four open parts (like Making The Band or Popstars...). They also ask former cast members what was it like, and the auditioners what was their favorite saga.