NEW YORK — Glenn Beck returns to Fox News Channel after a vacation on Monday with fewer companies willing to advertise on his show than when he left, part of the fallout from calling President Barack Obama a racist. A total of 33 Fox advertisers, including Walmart, CVS Caremark, Clorox and Sprint, directed that their commercials not air on Beck's show, according to the companies and ColorofChange.org, a group that promotes political action among blacks and launched a campaign to get advertisers to abandon him.