with 3 episodes premiered on February 19, 2016

with 12 episodes premiered on September 7, 2011

with 12 episodes premiered on September 5, 2012

with 12 episodes premiered on September 4, 2013

with 13 episodes premiered on September 3, 2014

with 12 episodes premiered on September 2, 2015

with 12 episodes premiered on September 7, 2016

with 12 episodes premiered on September 6, 2017

with 13 episodes premiered on September 5, 2018

Season 8 moves to a new location 40 miles south of the previous site, The Caverns at the foot of Monteagle Mountain in the hills of Grundy County, Tennessee near Pelham, Tennessee.

with 12 episodes premiered on September 4, 2019

with 12 episodes premiered on March 21, 2021

This season, due to the COVID-19 pandemic, each episode offers previous performances from two or more artists who have graced the underground stage over past seasons.