Glenn Beck Glenn Beck

Talk show host Glenn Beck returned to the air Monday, but did not address the advertiser boycott that began after he called President Barack Obama a racist.

Beck, who had been away on a planned vacation, didn't shy away from making other controversial statements upon his return, however. Launching a weeklong series called "The New Republic: America's Future," Beck opened the show by encouraging viewers to tell their friends to watch his show with a pen and paper because he was going to ask "reasonable questions for unreasonable times."

Check out the Top 5 talk-show controversies of 2009, a website supporting Beck, said Wal-Mart wasn't simply pulling ads from Beck's program, but "all cable news talk shows."'s calls to a Wal-Mart spokesperson were not immediately returned.

The boycott began shortly after Beck called Obama a racist with a "deep-seated hatred for white people or the white culture" during an appearance on Fox & Friends.