The Talk has canceled its two upcoming live shows after CBS launched a probe into Sharon Osbourne's bust up with Sheryl Underwood over Piers Morgan. It was revealed Sunday that the show will not air Monday or Tuesday. Wednesday's show is set to go ahead, Deadline reports. Journalist Elizabeth Vargas and singer Carly Pearce had both been scheduled to appear on the canceled shows. Osbourne had launched into a passionate defense of Morgan on Wednesday's The Talk, one day after she had also tweeted her support for him. Her resulting spat with co-host Underwood on the issue is now being...