Andrews Sisters bio pegs this on a different date...
In the book "The Andrews Sisters: A Biography And Career Record" (
p.315) the date of this broadcast is pegged as February 16, 1956 (Patty Andrews' 38th birthday.) It goes on to describe it in pretty specific detail - guest list, etc. It even notes Red Skelton as the host (not mentioned in the blurb here, but certainly shown on screen.) However, it's just as likely they're wrong...worth checking further, in any case.