"Our objective throughout this process has been to ensure that programming remains accurate and engaging for the widest possible audience," Sinclair wrote in a statement on the decision.

Sinclair Inc. is putting Jimmy Kimmel Live! back on its ABC TV network affiliates starting tonight, ending a standoff with ABC parent company Walt Disney Co.

Nexstar and Sinclair’s decision to pre-empt Mr. Kimmel threw a spotlight on the vast reach and influence of local station groups, which have the clout to black out shows in major metropolitan areas a...