It’s been a staple of the CBS summer schedule since 2000. Big Brother has dominated the network with three airings each week and there’s no danger of the show being cancelled. We already know it will return for season 18. Will the solid ratings continue? Stay tuned.

Hosted by Julie Chen, Big Brother typically airs three nights a week — Wednesdays (veto), Thursdays (eviction), and Sundays. This time around, the contestants are Audrey Middleton, Austin Matelson, Becky Burgess, Clay Honeycutt, Da’Vonne Rogers, Jace Agolli, James Huling, Jason Roy, John McGuire, Liz Nolan, Meg Maley, Shelli Poole, Steve Moses, and Vanessa Rousso.

The ratings are typically the best indication of a show’s likelihood of staying on the air. The higher the ratings (particularly the 18-49 demo), the better the chances for survival. This chart will be updated as new ratings data becomes available — typically around 11:30am EST/8:30am PST. Refresh to see the latest.

9/24 update: You can see the rest of the latest night’s ratings.

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For comparisons: The veto editions of the 16th season of Big Brother averaged a 2.19 rating in the 18-49 demographic with 6.51 million viewers.

Note: These are the final national numbers (unless noted with an “*”). These are different from the fast affiliate numbers which are just estimates of the actual ratings. The final nationals are typically released within 24 hours of the programming or, in the case of weekends and holidays, a couple days later.

What do you think? Do you like the Big Brother TV series? Do you think it should have been renewed for an 18th season already?