American Idol Drops in Ratings; Big Bang, Grey’s Anatomy and Life in Pieces Lead Thursday Night

American Idol saw a small decline in the latest preliminary ratings, slipping by one-tenth of a ratings point compared with last week’s preliminary numbers. Last week’s finale had shown a modest uptick, but this week’s result marks a return to the gradual downward trend the series has experienced as the season advances.

The evening’s top-rated series were The Big Bang Theory, Grey’s Anatomy and Life in Pieces. Notably, The Big Bang Theory, while still leading the night, registered a season low in the key demo, highlighting mixed performance across the prime-time lineup.

Also of interest: Wednesday’s clip episode of The Voice posted higher ratings than American Idol did on Thursday. While this comparison is noteworthy, it’s important to remember the context — The Voice episode aired near the start of its season, while Idol is approaching the end of its run. Historically, both competition reality programs tend to see ratings decline as their seasons progress, so the timing of each show’s season cycle affects direct head-to-head comparisons.

Below is the breakdown of preliminary ratings for the major broadcasts that evening, presented in the traditional ratings/share and millions of viewers format:

8 p.m.
The Big Bang Theory (CBS) — 3.5/13 — 14.49 million
Grey’s Anatomy (ABC) — 2.1/7 — 7.57 million
American Idol (FOX) (8–10 p.m.) — 1.8/6 — 7.60 million
Legends of Tomorrow (The CW) — 0.7/2 — 2.06 million
You, Me and the Apocalypse (NBC) — 0.6/2 — 2.37 million

8:30 p.m.
Life in Pieces (CBS) — 2.1/7 — 8.82 million

9 p.m.
Mom (CBS) — 1.8/6 — 8.05 million
Scandal (ABC) — 1.6/5 — 6.00 million
Law & Order: SVU (NBC) – Re-air — 0.7/2 — 3.10 million
The 100 (The CW) — 0.4/1 — 1.25 million

9:30 p.m.
2 Broke Girls (CBS) — 1.7/6 — 6.68 million

10 p.m.
How to Get Away with Murder (ABC) — 1.4/5 — 4.79 million
Elementary (CBS) — 1.1/4 — 5.65 million
Shades of Blue (NBC) — 1.0/4 — 4.86 million

These preliminary figures reflect the usual focus on the 18–49 demographic, where advertisers place the greatest value. CBS dominated the night in both raw viewers and demo ratings with its comedy block anchored by The Big Bang Theory, which continues to deliver strong audience totals despite the noted season low in demo share.

For American Idol, the week-to-week change is a reminder of the challenges long-running competition series face as they approach their finales. Viewer attention can fragment across multiple platforms, and reality shows often lose incremental viewership with each elimination round. Network strategists typically watch these trends closely to inform scheduling and promotional tactics for remaining episodes and future seasons.

Meanwhile, scripted dramas like Grey’s Anatomy and How to Get Away with Murder continue to capture solid audiences in their respective time slots, maintaining steady pull for their networks even when competition from high-profile reality programming is present.

In summary, Thursday’s preliminary ratings show a competitive night across the major broadcast networks. The Big Bang Theory led overall, Grey’s Anatomy and Life in Pieces performed well for ABC and CBS respectively, and American Idol experienced a slight decline as the season progresses. As final ratings and time-shifted viewership are reported, these numbers may be adjusted, but the current trend underscores the typical ebb and flow of broadcast television throughout a season.