In the wake of the horrific Boston marathon bombings on Monday afternoon, television viewers flocked in large numbers to the big three cable news outlets for coverage of the story. CNN, Fox, and MSNBC all saw large growth in their total and demo viewerships throughout the night. Fox ended up winning the key 25-54 demo and total viewership for the entire day; CNN won the demo during the 8-11 p.m. primetime hours.
Within the hour immediately after the news broke, Fox News dominated in both total viewership (1.96M) and the demo (542k), but then during the first full hour of coverage (4-5 p.m. ET), CNN began to eat into Fox’s lead, climbing to within 8,000 demo viewers.
During primetime (8-11 p.m.), CNN overtook Fox in the demo by a margin of 1.32M to 1.20M, but Fox remained on top in total viewers with 3.92M.
For the entire day, Fox placed first in both demo and total viewership (1.84M total / 516k demo); CNN came in second (1.19M total / 501k demo); MSNBC in third (527k total / 182k demo)
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