Here are some video clips of The Marx Brothers:

The Story of Mankind - Groucho Clip in .AVI format

The Story of Mankind - Groucho Clip in .FLV format

The Story of Mankind - Harpo Clip in .AVI format

The Story of Mankind - Harpo Clip in .FLV format

TV Clip - Groucho & Jackie Gleason doing 'Gallagher & Shean' in .WMV format