TL;DR: Stephen Colbert makes his first late-night appearance since “The Late Show” ended when he guests on “Jimmy Kimmel Live!” tonight, Tuesday, Sept. 15, at 11:35 p.m. ET on ABC, and you can watch ...

It's the end of an era for late-night TV. "The Late Show with Stephen Colbert" aired its series finale Thursday, May 21, bringing Colbert's nearly 11-year run to a close and ending the late-night ...