The Boston Manhunt pulled in nearly 42 million viewers for the last hour. 

Nielsen estimates that from 8-9PM on Friday, viewership more than doubled a normal Friday night.  

During the 8 p.m. hour, NBC's coverage was tops in the ratings with 10.7 million viewers.

ABC had 7.8 million viewers for that hour, Fox News Channel had 7.6 million, CBS had 6.9 million, CNN had 6.8 million.

MSNBC which really does not employ any journalist on staff and surley not in Prime Time pulled a measly 1.7 million viewers. 

Ouch!​