Also

* Wal-Mart Stores Inc. and other large retailers claimed a victory in Chicago after a vote failed to override Mayor Richard Daley’s veto of a bill requiring them to increase their minimum wage.

* NBC will begin streaming on the Internet episodes of several prime-time shows after their network airing, joining CBS, ABC and Fox in offering free, ad-supported shows online. NBC will show episodes of all six of its new prime-time series on its video player, called NBC 24/7, beginning Oct. 1, the network said.