An osteopathic physician, or D.O., is a board-certified physician fully licensed to practice in every state and in more than 65 countries. An osteopathic physician, or D.O., is a board-certified physician fully licensed to practice in every state and in more than 65 countries.
In 2004, Carlin was placed second on the Comedy Central list of Top 10 Comedians of US Audiences compiled for an April 2004 special. The first of his 14 stand-up comedy specials for HBO was filmed in 1977. From the late 1980s, Carlin's routines focused on sociocultural criticism of American society. He often commented on contemporary political issues in the United States and satirized the excesses of American culture.
These are the 100 Greatest Stand Up Comics of All Time as ranked by Comedy Central and discussed by comedians Greg Giraldo, Dom Irerra, Judy Gold, and Mario Joyner and rotating guests Phyllis Diller, Richard Jeni, Pat Cooper, David Brenner, and Richard Lewis. They aired the list over the course of the week of April 12th-16th on Comedy Central.