If you’ve been to Roberta’s in Bushwick anytime during the past five years, you’ve probably walked past the Heritage Radio Network studio on your way to the tiki bar — and you may have even, while seated in the adjacent dining room, watched one of its interviews (with the likes of Michael Pollan or Alice Waters) conducted live. At first glance, the wood-paneled recording studio, visible through a large window, might look like an atmospheric decoration no different from the artfully strung Christmas lights or the Brokeback Mountain painting. But the radio station, started by the founders of Slow Food USA, has streamed over the internet 24 hours a day for half a decade. HRN can now boast that its mostly food- and drink-related programs are beamed to 1 million listeners in some 200 nations every month. Tune in to hear talk about craft cocktails, the care of backyard chickens, or hunting wild game.