sorry, i wasn't thinking. bluegrass underground is a music show on pbs filmed in an underground cavern in pelham tennessee, about 45 minutes south of you called the caverns. i got confused because the city of mcminville always advertises on the show. they've aired some awesome acts. comes on in my area right before austin city limits. another music show my local pbs station used to air was sun studio sessions. they're basically the only thing i stay home for. well them and svengoolie.