More than a million viewers stayed up past midnight to watch comedian George Lopez.
Last night's debut of TBS' sophomore Lopez Tonight late night talk/variety show series drew 1.3 million viewers, according to the network.
Benefiting from the huge audience debut of Conan as its lead-in, Lopez Tonight -- which featured Grammy-winning musical artist and actress Janet Jackson and musical guest Rooney -- notched 833,000 persons in the advertiser-coveted 18-49 demo during the midnight hour.
The series premiere also drew 571,000 adults 18-34, according to TBS.
Lopez Tonight's premiere episode last November at 11 p.m. drew 3.2 million viewers combined for a simulcast airing on TBS, TNT and truTV.
"We're excited that George's devoted fans followed him to his new time," said Steve Koonin, president of Turner Entertainment Networks in a statement. "With the combination of Conan O'Brien at 11 p.m. and George Lopez at midnight, we're confident TBS will be a top late-night destination for young adults."
Tonight's guests for Lopez Tonight include Oscar-winning actor Jamie Foxx, Glee star Jayma Mays and San Francisco Giants infielder Freddy Sanchez. Upcoming guests include Howie Mandel and Juliette Lewis (Wednesday) and Denzel Washington, Hilary Duff and Russell Peters (Thursday).