It’s very nice that the Calendar shows future days on which programs are scheduled to run, and you can tap on any day to see details of what is scheduled (or not scheduled) for that day.
It would be even nicer if the same thing worked for past days. That is, there should be an icon on days when a program was run, and a different icon on days when a program was skipped or canceled. Tapping on that day should show details of what happened that day.
I know that this information is available in the History. But it is very tedious scrolling through the History looking for a specific day, especially given that it includes start and stop time for each zone. Having this information accessible from the Calendar would be much more useful.