Josh Clark and Chuck Bryant went from being Web writers for HowStuffWorks.com to podcast superstars with “Stuff You Should Know.” Now, they’re hoping their fans — who regularly put their educational podcast into iTunes’ top 5 — will follow them to TV for their Science series, “Stuff You Should Know.”

Fans who tune in for the premiere on Saturday should watch carefully.

“We hope that our fans will follow us to TV, because we’ve put stuff in the show for them — little Easter eggs to find,” Clark tells The Post.

“We have fan stuff decorating our cube, like fan art,” Bryant says.

The TV series, like the podcast, features fun, little-known facts. Clark and Bryant aren’t experts, they’re just guys who have researched topics that interest them. So, we had them do some digging for stuff we should know about New York:

There are 42 variations of the famous Greek coffee cup.

At 843 acres, Central Park is large. But it’s only the fifth-largest park in New York City behind Pelham Bay, Greenbelt, Flushing Meadows/Corona and Van Cortlandt parks.

The longest uninterrupted ride on the subway is a whopping 31 miles. Take the A train from Far Rockaway in Queens to 207th Street in Manhattan.

The Statue of Liberty was originally brown. Since 1886, the copper has oxidized into its familiar green patina.

The brownstone at 58 Joralemon St. in Brooklyn is not an apartment at all, but a fake façade covering a secret subway exit.

NY almost had wooden streets instead of cobblestone. The method was popular in Russia and parts of Europe at the time, but when a stretch of Broadway that served as the testing ground failed to convince city planners, the more traditional stone was used instead.

The narrowest house in NY is at 75 ½ Bedford St. in Greenwich Village. It’s only 9 ½ feet wide and 42 feet long, but it recently sold for close to $3 million.

The geometry train, the subway car mounted with lasers to insure that the tracks stay aligned, runs 24 hours per day, 7 days a week, 365 days a year throughout the New York subway system.

Some of the original metal spikes used to mark the layout of the street grid in the famous Commissioners’ Plan of 1811 can still be found buried in boulders in Central Park.

The Norge Appliance sign clock in Bushwick has been stuck on 5:49 since roughly World War II. You can see it from the Myrtle-Wyckoff Avenues platform on the L train.

In NYC during the 1800s, there were roughly 3 million pounds of horse manure and 40,000 gallons of horse urine produced ON A DAILY BASIS.

Yellow cabs are yellow because a study conducted by the University of Chicago determined that it was the easiest color to spot.