At seventy-three years old, Ozzy Osbourne has virtually nothing left to accomplish and even less to prove. TV personality, singer/songwriter, occasional actor and co-founder of an entire genre of music, if there’s anyone in the world of hard rock and metal who deserves to put their feet up with a pair of comfy slippers and a hot cup of cocoa then it’s the lovable Brummie seemingly incapable of using a television remote control.