There are two answers, as it depends on which date you mean:
The 3rd of May 1957 was a Friday.
March 5th 1957 was a Tuesday.
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New years day 1957 was a Tuesday.
May 09 1957 was a Thursday.
That day can be interpreted two ways: The 3rd of January in 1957 was a Thursday. March the 1st 1957 was a Friday.
A Day Called X - 1957 TV was released on: USA: 8 December 1957
http://www.intel.com/technology/magazine/computing/platform-2015-0305.htm
August 1, 1957 was a Thursday.
Wednesday 25th December 1957.
18th December 1957 was a Wednesday.
March 29th 1957 was a Friday.
November 30th 1957 was a Saturday.
The 6th of June 1957 was a Thursday.