Incorrect
Explanation
There can be as many as three Friday the 13ths in a single calendar year; either in February, March, and November in a common year starting on Thursday (such as 2009, 2015, or 2026), or January, April, and July in a leap year starting on Sunday.
Solve this puzzle
At 11:59 pm on January 1st, 1971, the last televised ad for what aired?