The list of cases that are awaiting trial or other settlement, often called a trial list or docket. A special calendar is an all-inclusive listing of cases awaiting trial; it contains dates for trial, names of counsel, and the estimated time required for trial. It is maintained by a trial judge in some states and by a court clerk in others.
TBC - "to be calendared" means that the case it's referring to has yet to be placed on the trial calendar.
https://www.inmateaid.com/ask-the-inmate/what-does-tbc-cases-to-be-calendared-means#answer
Accepted Answer Date Created: May 03,2016