[4] After graduating from Loyola High School of Los Angeles,[citation needed] Elliott attended the University of California, Santa Barbara.

[8][9] Elliott first joined ESPN in 2004 as a panelist for Around the Horn and Jim Rome Is Burning, as well as serving as guest co-host for Cold Pizza on ESPN2.

When ESPN began airing SportsCenter live every weekday morning on August 11, 2008, Elliott was paired as an anchor with Hannah Storm for the first three hours of the programming block beginning at 9:00 a.m.

[10] In May 2011, Elliott joined the team at ABC's Good Morning America following the departure of previous news anchor Juju Chang.

[14] Upon his hiring, it was believed that NBC was contemplating Elliott to serve as a future host of Today; in response, he told the press that he "[hoped] Matt Lauer is here when I step away from this gig 30 years down the road.

"[16] On February 10, 2017, Elliott announced on-air that he would be leaving CBSN, but stated "knowing how things work around here, I may see you again on Monday morning".

[19][20] Elliott received a local Emmy Award in New York City in 2005 for writing and contributing to Angles on MSG Network and served as one of the co-hosts for Super Bowl XL for Westwood One Sports.

[21] [better source needed] In 2018, Elliott co-hosted Yellowstone Live on National Geographic Channel with wildlife expert Chris Packham, a four-night event showcasing the Greater Yellowstone Ecosystem with feeds from dozens of live cameras and seven camera crews.