Between 1969 and 1970, Hall made two jazz recordings with Humphrey Lyttelton. This was followed by theatre tours and concert appearances; she sang at Duke Ellington's memorial service at St Martin-in-the-Fields in 1974. On 4 January 1974, she appeared on the British TV shows "Looks Familiar" (as a panelist) and on "What Is Jazz", with Humphrey Lyttelton. On 15 June 1976, she appeared on British TV in "It Don't Mean a Thing". and in 1981 appeared on the Michael Parkinson BBC TV show "Parkinson" as a guest. In July 1982, Hall appeared at a Gala concert held at St Paul's Cathedral in London to celebrate the sacred music of Duke Ellington. A live recording of the concert titled "The Sacred Music of Duke Ellington" was filmed for a Channel 4 TV documentary. Artists also taking part included Tony Bennett, Phyllis Hyman, Jacques Loussier, Alan Downey, Wayne Sleep, Ronnie Scott, Stan Tracey and the New Swingle Singers. The concert was hosted by Rod Steiger and narrated by Douglas Fairbanks Jr.