Auto Refresh Day (agenda)

Here is my question.

I have appointments all during the day. Things get added and some removed. I would like to display the DAY Agenda page on a screen (A smart TV or Tablet with internet) and I would like for that to auto update as I add more stuff to the calendar.

I want to create something like the flight tally boards at the airport. Listing the flights and the times and constantly updating.

Is this possible? Do I need to add some code to the page? Where and what page do I add the code to?