KGO ABC7 anchor Jessica Aguirre, Contra Costa Times Publisher John Armstrong (center) and KCBS-AM’s Al Hart will discuss the impact of the Internet and media consolidation on Bay Area newspapers, TV and radio stations at a free evening talk at the Walnut Creek Library on April 18. During the 90-minute panel discussion, Aguirre, Armstrong and Hart will focus on how the Internet — including news Web sites and blogs — is affecting print, television and radio journalism, according to a report in the Coco Times. Sponsored by the Walnut Creek Library Foundation, the program begins at 7:45 p.m. The downtown Walnut Creek Library is at 1644 N. Broadway.