It’s been a huge year for Marcus Mumford and this breakout British folk troupe, but victory laps keep coming. First, they famously jammed with Bob Dylan and the Avett Brothers, then came television/radio broadcasts of new songs #1 and #2 (they’ve performed more fresh tunes live, which we’ll surely see on the sophomore record). And now comes a pivotal moment for any buzz band: the PBS broadcast of their Austin City Limits performance. We’ve seen Monsters of Folk, Band of Horses, and the National (whom they covered recently) rock the ACL stage, but here come some of the biggest folk-rockers from across the pond. Watch their 25-minute segment along with Flogging Molly (complete with interviews) above.