I've got 34 episodes but I can't access episodes 1 to 9. Only episodes 10 to 34 show up on the episodes section of the dashboard.
I can see them in the performance section but can't edit them from there. If I tap on them they just sent me to the episode as a reader.
In regards to how old, I think the oldest ones are about two months old now.
Hope this sort of makes sense.