MonthlyCal will allow you to turn your TV into a huge and colorful monthly calendar.
and does not end here... the background color will be animated based on the season of the visible month!
You can use the trackpad of your Siri Remote to move between months.
Swipe up: Go to the previous month.
Swipe down: Go to the next month.
Play/Pause button: Back to the current month.
MonthlyCal is also available on your Mac!
Check out more here