Matthew Perry, one of the stars of the smash hit TV sitcom "Friends," was found dead at his home Saturday, US media reported. He was 54.<br /><br />First responders found Perry unconscious in a hot tub at his Los Angeles home and were unable to revive him, law enforcement sources told the Los Angeles Times.<br /><br />Perry was best known for his portrayal of the wise-cracking Chandler Bing on NBC's wildly popular "Friends," which ran for 10 seasons from 1994 to 2004.<br /><br />Perry had battled for years with addiction to painkillers and alcohol, and attended rehabilitation clinics on multiple occasions.