If you would like to add a schedule to your personal calendars here is how to do that.
For each schedule click on the link to get to the Tandem website.
Once you are there look in the top right corner where it says - Actions - Add to my calendar
Click on the link that says add to my calendar then pick calendar you want.
The best part about this is that Tandem automatically will update your calendars if anything changes! If you leave it alone it will continue to add the calendar for the following years until you unsubscribe.