DD4 was on YouTube Kids watching some things while I did the washing up and a quick hoover. All I heard was "the super secret special sex-squad is here!" and immediately dashed over "what are you watching!?"
It was Numberblocks, and it was "step-squad" or maybe "six-squad" but definitely not sex-squad. 
Even so, every time I hear it now all I hear is "sex-squad"