Happy Thanksgiving, time to celebrate at your local Walmart. Black Friday kicked off around 8 p.m. on Thanksgiving—excluding the online sales, some of which also started on Thursday. Walmart and Toys R Us both opened at 8 p.m., as did Sears, which will be open from 8 p.m. Thursday until 10 p.m. Friday, and Target opened its doors at 9 p.m. Thursday. Overall, about 17 percent of shoppers are expected to take part in the Thanksgiving sales, according to an International Council of Shopping Centers-Goldman Sachs survey. But expect some problems on Friday: Walmart workers are planning to protest the Thanksgiving hours.