The UFC 184 Preliminary Card on Fox Sports 1 took place this past Saturday and featured Roan Carneiro returning to the UFC and submitting Mark Munoz in the first round with a rear-naked choke. 
According to Nielsen sources, the UFC 184 preliminary overnight viewership number for the prelims landed at 1.205 million viewers and 713,000 of those viewers were in the P18-49 demo.
With this viewership, the UFC 184 prelims is the third most watched PPV preliminary card since the debut of Fox Sports 1 (UFC 168, UFC 183).
The peak of the UFC 184 preliminary card broadcast came in the 9:15 p.m. ET – 9:30 p.m. ET quarter hour with 1,453,000 viewers and this is the third straight pay-per-view preliminary card to draw over 1 million viewers as UFC 182 had 1.04 million viewers and UFC 183 came in with 1.546 million viewers.
When it comes to the demographics numbers, UFC 184 prelims on Fox Sports 1 drew a .56 P18-49, .50 P18-34, and .58 P25-54.
Along with the preliminary card drawing great numbers for the network, the weigh-in show on Friday also drew well. The weigh-in show aired on Fox Sports 1 on Friday and scored 222,000 viewers and 81,000 in the A18-49 demo, making it the second most-watched UFC weigh-in show ever on Fox Sports 1 in both metrics as the number one weigh-in broadcast is UFC 168 with 275,000 viewers.
Following the preliminary card broadcast, Fox Sports Live at 10:00 p.m. ET drew 239,000 viewers and 135,000 in the P18-49 demo, up 48 percent in viewers (151,000) and up 80 percent in P18-49 (75,000) from its March 2014 average in the same Saturday evening time period. Later that evening at 12:40 p.m. ET, the Fox Sports 1 UFC 184 Post Fight Show had 188,000 viewers and 130,000 in the P18-49 demo.
The event also did well on social media as it was the number one sports program in the Nielson Twitter TV Ratings on Saturday and finished as the number three sports program of the week with the top two spots going to NBA basketball games.
With the UFC and NASCAR programming on Saturday, Fox Sports 1 to its seventh most watched Saturday from 6:00 a.m. ET – 6:00 a.m. ET since launch, averaging 543,000 viewers for that time span.