When I lived in NYC, my fav station was WFUV-FM, based at Fordam University.

Besides their City Folk show, which highlights new and, as the name implies, a more urbanized acoustic sound (Robert Earl Keene, Dar Williams, Sun Volt, etc, on Saturdays they have an Irish show, called A Thousand Welcomes with Kathleen Biggins.

On Sunday they run the syndicated Thistle and Shamrock, with Fiona Ritchie.

Rich