Helen Kane- My Man Is On The Make (1930)

Helen Kane sings and dances to "My Man Is On The Make" from the film Heads Up.

The Ed Wynn Show (1950)

From Wikipedia:

In the 1949-50, Ed Wynn hosted one of the first comedy-variety television shows, on CBS, and won an Emmy Award in 1949. Buster Keaton, Lucille Ball, and The Three Stooges all made guest appearances with Wynn. This was the first CBS variety television show to originate in Los Angeles, with programs filmed via kinescope for distribution in the Midwest and East.

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Helen Keller & Anne Sullivan- Newsreel

Helen Keller, the American author, political activist and lecturer, and her instructor and lifelong companion, Anne Sullivan, appears in a Vitaphone newsreel from 1930. In this footage, Sullivan shows the way Helen Keller learned to talk.