Thank you so much for posting your question and welcome to the Xfinity Forum. Due to copyright and licensing laws, there can be legal repercussions for streaming our television service to your customers. This is one of the reasons why we do not allow business customers to have the ability to stream any content via their business account. Our streaming service is really only meant to be used by our customers for their own personal use.
Additionally, there will be channels broadcasting the wedding in real time. We offer many business television packages that should include channels that will be broadcasting that event. Feel free to view all available television packages (public view) for your business here: https://www.comcastbusinessoffers.com/service/tv