This is the first title reign for O'Reilly and Fish since signing with the company earlier this year. SAnitY's Young and Alexander Wolfe won the titles back in August at NXT "Takeover: Brooklyn III" during SummerSlam weekend.
The title change actually took place back on November 29th at the NXT TV tapings from Full Sail University. It's worth noting that Fish and O'Reilly have been defending the titles at NXT live events since then.
Below are photos and videos from tonight's title change: