Wine and beer advertisements air liberally on national network television but for years the spirits industry has voluntarily banned televised liquor commercials. In December, NBC announced its intention to become the first broadcast network to run liquor ads but bowing to criticism, it revoked that declaration last week saying it was ending the three-month-old experiment. Who pressured the industry and why? And why are wine and beer ads allowed on TV but not liquor commercials? Larry Mantle opens the phones to hear from listeners about televising liquor ads.