About 8.06 million watched the Season 3 premiere of Young Sheldon in the former 9 p.m. Thursday timeslot of The Big Bang Theory, which it was spun off of. That's well below last season's 11.14 million average. Young Sheldon was, however, the highest-rated non-football show Thursday night. Perfect Harmony debuted to 2.6 million, while Sunnyside attracted 1.8 million. CBS fared better with its three new shows: The Unicorn attracted just over 6 million viewers, Carol's Second Act had just under 6 million and drama Evil premiered to 4.62 million.