“Are you hearing that emergency alert on my phone?” David Duchovny asks. It’s a fitting way to start our chat about History’s new 10-episode series Secrets Declassified With David Duchovny, which investigates stories of secret government activity and reveals the wild truths behind them. The actor, best known as The X-Files‘ FBI agent Fox Mulder, hosts each hourlong episode, serving as a narrative guide through the bombshells and intrigue — and he tells TV Insider whether the truth really is out there. You usually avoid projects with subject matter that’s similar to The X-Files. What made this one different? David Duchovny: While I was doing that show, and even to this day, people would either come up to me and ask “Are those real cases?” or tell me that they have [experienced] real cases and I don’t know what I’m talking about. And I thought, well, this...