Fox News outperformed the competition on night one of the GOP convention

TAMPA, Fla. --  Fox News outperformed the competition on night one of the GOP convention, drawing more viewers than NBC, ABC, and CBS in the 10 p.m. hour and at least four-times as many viewers as its cable competitors MSNBC and CNN, according to preliminary Nielsen ratings. NBC News won the most viewers in the coveted 25-54-year-old demographic.

Via TVNewser:

According to preliminary data from Nielsen Media Research (final numbers could change, but probably not by much), FNC averaged 5.15 million viewers from 8-11 PM last night. CNN averaged 1.2 million, with MSNBC averaging 1.32 million.

From 10-11PM when the broadcasters had live coverage, FNC averaged 6.89 million viewers, NBC averaged 4.77 million viewers, CBS averaged 3.12 million viewers and ABC averaged 2.86 million viewers.  During the same hour CNN and MSNBC each averaged 1.47 million viewers. (Source)