Here's what to know for Sunday's episode. What time is 'Big Brother' on? "Big Brother 27" will air tonight at 7 p.m. CT. This episode will recap the nomination ceremony and the ...

"Big Brother" airs from 8-9:30 p.m. ET Sunday. Sunday's episode will last 90 minutes, from 8-9:30 p.m. ET. In addition to ...