On Thursday's show: We preview tonight's mayoral debate with Houston Public Media's Christina Yao Lee, who's moderating it. The debate airs at 7:30 on TV 8, News 88.7 FM, and houstonpublicmedia.org.

Also this hour: We continue our series of interviews with candidates in some key races this November with a conversation with City Councilman Robert Gallegos, who’s running for Houston Mayor.

And we get a behind-the-scenes preview of a world premiere opera called Intelligence about spies during the Civil War. Its creator, Jake Heggie, is one of the big names in contemporary opera. The show runs at Houston Grand Opera Oct. 20 through Nov. 3.