Lopez Tonight is an American late-night television talk show hosted by comedian George Lopez. The hour-long program premiered on November 9, 2009, on cable network TBS. Lopez was the first Mexican American to host a late-night talk show on an English-language network in the United States. The show featured audience interaction using a high-energy format. The program aired Monday through Thursday at midnight Eastern and Pacific, immediately following Conan. On August 10, 2011, TBS announced Lopez Tonight would be cancelled.