What does Host TBD mean?
Edited
Sometimes, life happens, and a host may need to cancel a session they made. If nobody has booked the session yet, the session simply disappears from the schedule. Otherwise, it becomes a "host-less" session.
Any other host will be able to pick it up from the schedule, the session details page, or when they join the session.
All hosts already signed up for the session will receive an email asking if they would like to step in as host.
Hosts can still join a host-less session and choose not to host
If you booked into this type of session, and find yourself alone, it's recommended you cancel this session and join a different one.