After ZeD, Tong was hired by CTV to host the television series Island Escapes, which premiered on January 6, 2006. Critic Denise Duguay called her a "lively and game travel host". In this position, she visited many exotic island locations, and highlighted the attractions of places such as New Caledonia, Bedarra Island and Fiji.
Starting in January 2007 she worked as a host and producer for two science shows, Wired Science on PBS and The Leading Edge, a Canadian science series on The Knowledge Network.
Tong has also written for Wired magazine and blogged on the Wired Science site for PBS. She also was a reporter for NOVA on PBS.
After joining Discovery Channel's Daily Planet as a guest host for November and December 2008, she was named the new permanent co-host of the daily science program.
For three years, Tong co-hosted Daily Planet with science journalist Jay Ingram. When Ingram retired from the program in June 2011, Tong was joined by current co-host Dan Riskin and since, the show has generated record ratings as it completed its 18th season on Canadian television. Tong also writes and produces Ziyology,a weekly column looking at wonder and science.