Czarniak served as a host and sportsdesk reporter for NBC Sports coverage of the 2008 Summer Olympics in Beijing, China.

In June 2005, Czarniak returned to the D.C. area and joined WRC-TV after she had received a phone call from George Michael to work as a sports anchor and reporter.

In her first major assignment as a reporter, Czarniak traveled to Turin, Italy to relay coverage of the 2006 Winter Olympics for NBC Sports.

She was also tapped as a pit reporter for TNT's six-race Sprint Cup Series schedule from Pocono to Chicago.

Following the murder of free safety Sean Taylor in November 2007, Czarniak was the first sports reporter to interview team players of the Washington Redskins.

Czarniak made a guest appearance on the edition of May 22, 2008, of The Tony Kornheiser Show, occupying the "chick chair."

On that show, she told a humorous anecdote of being arrested for expired license plates by the DC Police on her way to a News 4 interview, which turned out to be an important public service warning for those who visit Washington, D.C. On July 17, 2008, Czarniak was honored at the Reading Phillies at Bowie Baysox doubleheader where she threw the first pitch.

Initially, Lindsay Czarniak Day was set to take place on July 21, but was changed due to a scheduling conflict.

She succeeded Musburger as well as previous hosts and broadcast legends Jim McKay, Keith Jackson, Paul Page, and Al Michaels.

She would be producing digital content during the Daytona 500 along with features on each of the team's four Monster Energy Cup Series racers.

[21] In 2009, Czarniak made a cameo appearance in the indie film Ghosts Don't Exist from executive producer Chris Cooley.