Former “Dancing With the Stars” host Tom Bergeron steps up for a marketing masterstroke by Discovery Channel’s “Shark Week” — “Dancing with Sharks,” where humans and 20-foot-long hammerhead sharks do a little mambo.

After nearly 15 years co-hosting ABC’s “Dancing With the Stars,” veteran TV personality Tom Bergeron felt like he was done working on a weekly series. However, he didn’t want to “disappear into the hinterlands,

TV host Tom Bergeron hosts a new Shark Week competition called "Dancing with Sharks" on Discovery Channel. (July 18)