This has been brought up already in
this thread and
this thread.
Just to clarify one point, the production team has not yet selected which teams they will be tracking during the season. They will not be making that decision until some time after December 7. All the teams that are agreeing to participate in this phase of the effort need to be aware that you are not yet part of the final documentary that will be filmed for PBS. You are just agreeing to prepare a video about your team and submit it to the production company as a "virtual audition" for their consideration. After reviewing the audition tapes and associated materials, the production crew will make their selections and notify the teams that will actually be in the film.
-dave