America Radio, the liberal news and talk radio network headlined by the comedian Al Franken, has another week to find a buyer. A lawyer for the network, Tracy Klestadt, told a bankruptcy hearing Monday that the company was in "advanced negotiations with a few parties" about a sale, and expected to have more definitive news on a deal in a week. Under its financing agreement, the network had faced a deadline of this Wednesday to have a deal in place for a buyer, but Klestadt said the network's lender had informally agreed to extend the deadline by about a week....