Emails could be used to send users of up-coming shows ahead of time. I turn off notifications for everything (except SMS and alarms) as I frequently am not in a position to drop everything and do something just because I receive a notification. I just catch up on my messages every now and then and from my emails I can schedule any important alarms for times I need to do something or add things to my calendar so I know what's happening. Instant notification are a huge disruption to my workflow and rarely benefit me.
Well yeah, all users can see the schedule at any time by visiting the website. They still want a notification to serve as a reminder, because many people are forgetful, especially new users who haven't gotten used to the schedule yet.
