WWE Halftime Heat on Sunday was streamed live on YouTube, Twitter & Facebook. When the match ended, the viewership between those 3 platforms was 86,190 (h/t to John Pollock of POST Wrestling). On YouTube, the match peaked at 71,090 viewers, while Facebook had 10,100 & Twitter added another 5,000 views.
WWE posted the match on YouTube, which you can watch in the video below at The 3:33:20 mark. As of this writing, the video has received nearly 1.2 million views.

The first Halftime Heat aired 20 years ago during Super Bowl XXXIII in 1999 on The USA Network. The show featured Mankind defeating The Rock in an “Empty Arena” Match for his second WWE Championship. That show did a massive 6.6 rating.
This year’s WWE Halftime Heat featured Aleister Black, The Velveteen Dream & Ricochet defeating NXT North American Champion Johnny Gargano, NXT Champion Tommaso Ciampa & Adam Cole. The full results of the show can be found here.