What are Nexstar and Sinclair, the ABC affiliate owners who issued statements against Jimmy Kimmel

People protest outside The Walt Disney Company’s Headquarters, a day after Walt Disney-owned ABC said it was pulling "Jimmy Kimmel Live!" off the air due to threats by the head of the top U.S. communications regulator, because of comments by Kimmel on the assassination of right wing influencer Charlie Kirk, in New York City, U.S., September 18, 2025. REUTERS/Shannon Stapleton