When Groucho Marx hosted "The Tonight Show"
Groucho Marx was a guest host on "The Tonight Show."
Groucho Marx roasts Dick Cavett
One of Groucho's best nights on "The Dick Cavett Show."
What made Groucho Marx a great writer
Groucho Marx was a prolific writer with "a genuine intellect."
Dick Cavett's early days of standup comedy
Dick Cavett reflects on his early days of standup and the lessons he learned.