CNN says "Piers Morgan Tonight" drew nearly 2.1 million viewers to its premiere Monday night.
The debut featured an interview with Oprah Winfrey and more than tripled the average audience for "Larry King Live," which Morgan's show replaces.
CNN said Tuesday that the show ranked second among cable-news talk shows at that hour, behind Fox News Channel's "Hannity," but ahead of MSNBC's "The Rachel Maddow Show."
"Piers Morgan Tonight" airs weeknights on CNN at 9 p.m. Eastern time.
CNN is owned by Time Warner.
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