Who did Rated-RKO dethrone in their debut?

Rated-RKO vs. D-Generation X - Cyber Sunday 2006
The Undertaker & Kane vs. L.O.D. 2000 - Sunday Night Heat, September 6, 1998
The Rock n' Sock Connection vs. The Undertaker & Big Show - Raw, August 30, 1999
Edge & Christian vs. Faarooq & Bradshaw - Raw, July 26, 1999
The Dudley Boyz vs. The Hardy Boyz - Raw, September 20, 1999

WWE Network previews, highlights and excerpts

Goldberg’s painful method for getting ring-ready: Goldberg at 54 sneak peek
Big E sets bench press record at John Cena’s gym: WWE 24 sneak peek
Sasha Banks reflects on her five-month WWE absence: Steve Austin’s Broken Skull Sessions sneak peek
Edge & Christian prepare for their Royal Rumble returns: WWE The Day Of sneak peek
The APA reflect on their special bond and friendship: WWE Untold sneak peek