On November 6th, during the week that the Austin episode of “Sonic Highways” aired, Dave Grohl returned to Austin and sat down for a conversation with Austin City Limits executive producer Terry Lickona in the original Studio 6A where ACL began 40 years ago. It was a comfortable setting for both, since it’s also where the Foo Fighters camped out for a week back in March when they were filming the episode and recording one of their new songs. Enjoy!