Today in Rerun News, plus Shatner returns to "Tonight"

We've all heard that David Letterman has been catching up to Conan O'Brien in the ratings, but Dave had better watch his back -- Conan is almost guaranteed to beat him handily during the weeks of Aug. 3 and 10.

Why? "Late Show" is going into reruns, presenting early-summer newsmakers like Bruno, Daniel Radcliffe and Johnny Depp. (Dave's now-notorious interview with Joaquin Phoenix will also be shown, on Aug. 7.) Meanwhile, O'Brien will roll out a fortnight of fresh shows with stars including "Mad Men"'s Jon Hamm and comic Robin Williams.

(Speaking of "Tonight," William Shatner -- whose hilarious beat-poetry rendition of Sarah Palin's farewell speech became a viral video hit -- will be back on the show this evening, this time reading a selection of Palin's tweets.)

"Late Late Show with Craig Ferguson" will deliver new episodes while Dave is in Montana or St. Barts or wherever he plans to hang out next month.

Fans of "The View" will have to live without the ladies' take on hot topics for a month, as the show wraps up its season on Friday the 7th. Highlights of the finale week include Sherri Shepherd's "bathing suit body" unveiling on the 6th, and a visit from "Julia & Julia" stars Meryl Streep and Amy Adams on the 7th. The show's 13th season will begin the morning after Labor Day: Tuesday, Sept. 8.