Explanation
Calendars work better when they assign themes to weeks rather than specific videos to specific dates. A date creates a deadline you will miss; a week creates a batch you will make, and the difference in adherence between the two is large.
A calendar with every slot filled is also a calendar that fights reality. Leaving gaps is what allows the reactive post, which is frequently the best one, to have somewhere to go.
The common mistake
Treating the calendar as a commitment device. It is a buffer, and its whole value is that missing one entry costs nothing because the work already happened.