Why didn't Sister Hua Er broadcast it on April 1?

It doesn't air until Saturday.

Sister Flowers Season 2 is a large star travel reality show introduced by Dragon TV from South Korea's tvN TV station. It will be broadcast by Oriental TV at 20: 30 every Saturday from March 12, 2065.

This program consists of Song Dandan, Wang Lin, Lin Chi-ling, Jiang Yan and Gina. Together with porters Aarif Lee, Henry and Joseph, this is a trip to the mysterious South America and South Pole.