9. Dick Cavett
Dick Cavett has hosted many talk shows over the years, but his most famous ran on ABC from 1969 to 1975. It competed directly against The Tonight Show, but the two programs were very different. Cavett taped in New York and was far more interested in booking interesting guests than chatting up A-list stars or filming goofy comedy bits. He also embraced rock & roll in a huge way, sitting down with John Lennon, David Bowie and Jimi Hendrix. David Crosby, Joni Mitchell, the Jefferson Airplane and Stephen Stills all appeared days after Woodstock. None of this led to huge ratings, and in 1975 Cavett's show was cancelled – though the host later moved to PBS, USA and eventually CNBC.