Premiere week has ended for the fall TV season, and while some shows are already hits, others may struggle to get renewed at the end of the season.

Marvel's Agents of S.H.I.E.L.D. is the highest-rated new show of the fall in the 18-49 demographic, garnering a 4.7 rating. The superhero-themed show almost beat every returning show as well, coming in second behind The Big Bang Theory, which scored a 5.8 rating. 12.12 million viewers watched the premiere episode last Tuesday.

Another big hit on premiere week was the Robin Williams sitcom The Crazy Ones on CBS. The series debuted Thursday at 9 p.m. with 15.52 million viewers, making it the most viewed new show of the season overall. The sitcom, which also stars Sarah Michelle Gellar, received a 3.9 rating in the 18-49 demographic, putting it at fourth overall. The premiere episode can be viewed here.

Other new shows that did well in premiere week included The Blacklist on NBC (12.58 million viewers) and Sleepy Hollow, which has not fallen below 8.5 million viewers in its two weeks on the air.

As for new shows, ABC has not had much luck with new dramas aside from Marvel's Agents of S.H.I.E.L.D. Lucky 7, the drama about a group of co-workers who win the lottery, debuted to a measly 4.47 million viewers at a 1.3 rating in the 18-49 demographic last Tuesday.

Sunday night's primetime soap Betrayal did not premiere well either with only 5.27 million viewers and a 1.5 rating. It is likely that neither Lucky 7 nor Betrayal will be renewed and may not even last the full season if ratings drop in the next few weeks.

For a full list of ratings for new and returning shows, click here.

Tags: Fall TV fall tv shows Marvel's Agents of S.H.I.E.L.D. The Crazy Ones