Changing the format of the lobby page in broadcast?

[Chris Reece]

Hi,
Im looking to use the broadcast function of powerpoint to create
presentations that include both audio/video and slides. I can manage that
part fine, my problem is in formatting the lobby page and changing the way it
looks from the standard windows default provided, to something more
proffessional and company orientated.
Is this possible?
If so, how?

Thanks for any help on this.