Travel Channel has greenlit two original unscripted series and moved two others into development, including one from David Arquette, Courteney Cox and Omar Epps.

The cabler also said it would premiere the eighth season of “Anthony Bourdain: No Reservations” on April 9 and renewed Bourdain’s “The Layover” for a second season.

“Adam Richman’s Best Sandwich in America,” which received an order for 10 halfhour episodes plus an hourlong finale, follows the host’s cross-country pursuit of the perfect sandwich. The show will succeed Richman’s “Man v. Food,” which has ceased production after four years on Travel.

Richman will exec produce with Matt Sharp, Dan Adler and Bob Larson for Sharp Entertainment, which also is the shingle behind newly greenlit halfhour series “Toy Hunters.”

In the latter, which grew out of a Travel Channel special to earn an order for 12 halfhour episodes, toy and collectibles dealer Jordan Hembrough also goes around the U.S. in search of hard-to-find treasures.

Arquette, Cox, Epps and Mike McGuiness are exec producing “Mile High,” a project that envisions showcasing the weekend adventures of friends Arquette and McGuiness, a PR firm co-owner. Travel also ordered a halfhour pilot for “Aloha Gold,” centered on a Hawaiian tour company, with Fishbowl Worldwide Media producing.

“We have a dynamic programming slate rolling out this year, where we will be providing a diverse array of perspectives from a new team of travel experts and pros who will inspire and engage our viewers through their personal lens,” Travel senior veep of programming production Andy Singer said. “Making the unfamiliar familiar is our aim this year.”