Things might look gloomy at CNN with layoffs, salary cuts and a new digital programming model that may or may not work. But On The Money has learned that private equity firms have been crunching the numbers on a possible acquisition of the ratings-challenged network. Don’t exactly hold your breath for anything happening soon, my sources both at CNN and in the private equity business tell me. The network’s parent, Warner Bros Discovery, isn’t yet shopping CNN. Indeed, no firm has made a bid, my sources tell me: the PE people I spoke to don’t really know how to really...