Starz says it is canceling Kelsey Grammer\'s Chicago-set political drama \"Boss\" after two seasons of good reviews and low ratings. \"After much deliberation, we have made the difficult decision to not proceed with \'Boss,\'\" the network said in a statement Tuesday. \"We remain proud of this award-winning show, its exceptional cast and writers, and are grateful to Kelsey Grammer, Farhad Safinia and our partners at Lionsgate TV.\" Grammer is best known for his Emmy Award-winning work in the sitcoms \"Cheers\" and \"Frasier.\" \"Boss\" was his first small-screen drama.