A new improv comedy series comes to Bravo Saturdays at 11 p.m., beginning Jan. 7. Significant Others takes a humorous look at couples in and out of therapy. Bravo is also unveiling what it is touting as a new genre of unscripted comedy/reality series with Hidden Howie: The Private Life of a Public Nuisance. The six half hours are based on the life of comedian Howie Mandel and mix scenes inspired by his real life with practical jokes played on unsuspecting people. Howie will air Saturdays at 11:30 p.m., beginning Jan. 7. Meanwhile, Rez Blues, a 13-part performance series that showcases Native blues and comedy talent, premieres Tuesday, Jan. 17 at 7:30 p.m. Target demo is 35-55.