CBS announced two exec promotions yesterday. JAMES WARNER has been promoted to President of CBS Television Network. He was formerly President of CBS Enterprises. JOSEPH ABRUZZESE was also promoted from Exec VP to President of the CBS Sales division (N.Y. TIMES 4/14)....Tuesday's public ceremony for JOE MONTANA will include BILL WALSH, CARMEN POLICY, EDDIE DEBARTOLO, JOHN MADDEN and GEORGE SEIFERT (IMG)....CARLOS BAERGA, KENNY LOFTON and SANDY ALOMAR JR. all appeared on "CBS This Morning" (CBS, 4/14). ....Outgoing LA Governor EDWIN EDWARDS has decided against taking a position with the 49ers, according to the New Orleans TIMES-PICAYUNE. Edwards said he had arranged with the 49ers to accept "a position in substantial salary and other benefits," but that he decided he didn't want to leave his home. While Edwards is a "longtime" friend of the DeBartolo family, team officials had no knowledge of a job offer (New Orleans TIMES-PICAYUNE, 4/13)....NBC's BOB COSTAS was a guest on David Letterman last night. Letterman: "Having the World Series, the playoffs and the World Series jerked out of our lives for the first time since I have been drawing breath on this planet, I suddenly now realize that I really don't care as much about it as I once did" (large cheer). Costas: "Together, the players and owners, have killed a good portion of what once mattered about it" (another large cheer) (CBS, 4/13)....IZZY, the official character of the '96 Summer Games, will take part at this year's annual White House Easter Egg Roll and Egg Hunt (ACOG)....Agent TONY ATTANASIO is profiled in today's WALL STREET JOURNAL. The piece focses on his efforts to get his baseball free agent clients signed (W.S. JOURNAL, 4/14).