The Ticker: Dateline Studio, Cooper, Snow…

> According to a tipster: “The 3B studio at 30 Rock, usually home of ‘Dateline,’ has been turned into the studio for the new talk show, ‘The Dr. Keith Ablow Show.’ Dateline is moving to a different studio…”

> Celebrity 360? Anderson Cooper will interview Faith Hill and Tim McGraw backstage at their “Soul 2 Soul II” concert in New Orleans next week. Part of their concert will air live during a special report, “American Heroes: Giving Back to the Gulf,” Wednesday night. The program will also include “inspiring post-Katrina stories.” Details…

> “I guess we know who the fill-in for Charlie might be,” an e-mailer says. “Kate Snow is in for Charile anchoring World News Tonight…” Update: 9:16pm: “Terry Moran anchored the first 3 Fridays since Charlie took over permanently, then he went to Guantanamo and Kate anchored the last 2 Fridays,” an e-mailer says. “I would think Terry will be the #1 fill-in.”

> Ann Curry will be filling in on the NBC Nightly News for a couple days next week, leading an e-mailer to remark: “I find it hard to believe that David Gregory, Campbell Brown, Lester Holt, John Seigenthaler and Andrea Mitchell all weren’t available to fill-in…” Update: 9:18pm: “It aint about someone else being unavailable,” a knowledgeable e-mailer says. “I don’t know what Ann Curry’s contract says — but many network corrsspondents get a day or two of fill-in anchoring built into their contracts, which gets burned off during periods of extremely low viewership (like the July 4 holiday). That’s why you would see folks like John Cochran anchoring on Xmas day.”