The city attorney's office is hitting pay dirt in its request for documents from local public radio and TV, KPBS. All along, one of the areas of interest is Cable Channel 4 televising the "Editors Roundtable" show. Channel 4 televises the Padres games, and has a snug relationship with the team. It is not a surprise, then, that substantially all of the "Editors Roundtable" shows it puts on TV feature the Three Sopranos -- Bob Kittle of the U-T, Tim McClain of Metropolitan Magazine and John Warner of Voice & Viewpoint. They always give the establishment point of view. Two KPBS producers, Ana Tintocalis and Hank Crook, challenged this strategy in internal memos. Tintocalis wondered if Cox made a deliberate decision "to only tape [the show] when Tim, Bob and John appear." Crook asked, "Do they (Cox) prefer the "regular editors?" The two producers agreed that the show was better when other editors appeared, such as Scott Lewis and Andrew Donohue of Voice of San Diego, J.W. August of Channel 10, Kent Davy of the North County Times and Tony Perry of the Los Angeles Times, among others. Does Cox want anyone that isn't certain to echo the downtown business line? Of course not. (Editors of the Reader are not invited.) According to its mandate, KPBS is supposed to produce diverse public affairs programming that "reflects the pluralism of our society" and is "not dominated by any one point of view." The relationship with Channel 4 should be scrutinized.