 <translate> To answer the above question, the relevant sentence is: The eleventh season of the American television sitcom The Big Bang Theory premiered on CBS on Monday, September 25, 2017. So, the answer is Monday , September 25 , 2017. <yor> Láti dáhùn ìbéèrè tó wà lókè yìí, gbólóhùn tó bá a mu ni: Àsìkò kọkànlá ti eré orí tẹlifíṣọ̀n Amẹ́ríkà The Big Bang Theory ni a ṣe àkọ́kọ́ jáde lórí CBS ní Ọjọ́ Àbámẹ́ta, September 25, 2017. Nítorí náà, ìdáhùn náà ni Monday, September 25, 2017. 