Ratings: ‘The Big Bang Theory’ at eight-year low; ‘The 100’, ‘Legends of Tomorrow,’ more down

There are a lot of interesting stories worth talking about in terms of the primetime ratings for last night, but to us the most interesting one remains the steady decline in “The Big Bang Theory,” a show that was at one point regularly getting over 4.0 ratings in the 18-49 demographic. Thursday night’s episode drew just a 2.9, which is still #1 on the night and impressive … but nonetheless is the lowest number for an episode of the show in eight years, as pointed out by TVLine.

Why the big drop? It’s hard to pinpoint a singular reason, though we do think that some of the intrigue of the series is lost now that most of the main characters have love in their lives and seem fairly settled in. Also, it’s just hard to keep huge ratings for almost a decade.

Let’s go ahead and dive into how some other shows performed on what was by and large a fairly depressing night when it comes to ratings.

The good news – “The Odd Couple” (1.6) is ironically the only show on the night to really improve by a good margin; we say this in such a way because of the show it followed in “The Big Bang Theory.” After being at one point seemingly written off, we do now wonder if it’s a got a chance to survive.

The bad news – Both “Legends of Tomorrow” (0.6) and “The 100” (0.4) brought out their worst performances of the season. “The Catch” (0.9) also fell, and we’re not sure how much “The Blacklist” (1.2) really helped the odds of its spin-off getting off the ground.

You can get our most-recent episode review for “The Big Bang Theory” right now over at the link here! Also, sign up over here in the event you want some other TV news on all we cover, sent right over to you via our official CarterMatt Newsletter. (Photo: CBS.)