Act now and you can watch “Pitchmen” (9 p.m., Discovery). This one-of-a-kind show is not available in stores. It offers a behind-the-scenes look at the world of infomercials that chops, slices and dices through the American dream of making an indispensable product and selling it on television at 3 a.m.

Where else can you see Billy Mays, the screaming king of the infomercial, and his producer, Anthony “Sully” Sullivan? You’ll be amazed as they evaluate, sample and test market a parade of products looking for the Wow! factor you’ve come to expect from infomercials aimed at keeping the hardcore insomniac awake so he’ll spend, spend, spend on essential items he had never heard of before.

You’ll see a dreamer who went deep into debt to develop a super impact-resistant resin for shock-absorbing shoe insoles. How impact resistant? It’s protective enough to protect the human hand from the weight of a 6,000-pound SUV! And Sully’s just the guy who can prove it!

“Pitchmen” also offers a poignant tale of a cancer survivor living in a trailer in Pearland, Texas, who has developed a device designed to hold that bulky GPS device and its pesky wires. Does that pack the Wow!? You’ll just have to watch to find out.

But wait! There’s more! Yes, in this amazing offer, “Pitchmen” gives you a lesson in high-volume merchandising; the quirky world of gadget inventors and the cheesy goodness of two screaming infomercial professionals all wrapped up in an hour-long documentary that will air over the next 13 Wednesday evenings. What are you waiting for? Operators are standing by!

• Imitators keep gunning for “The Bachelor,” each creepier than the last. Remember “Mamma’s Boys”? The odd Oedipal theme continues on “The Cougar” (9 p.m., TV Land).

On this festival of nervous laughs, a 40-ish mother of four entertains a gaggle of guys who have yet to turn 30. The youngest turns 21 on the day of the initial ceremony and shares his first legal drink with his potential older lover.

The presence of a mature woman brings out the testosterone in the boys. The open bar has an impact as well.

In the most absurd elimination procedure since the dating-show parody “Joe Schmo,” our cougar must conduct a “kiss-off.” If her lips lock with her Lothario, he’s safe. But if she turns for a peck on a cheek, it’s time to go.

The cougar presides like a shopaholic Snow White tending to half-drunken dwarves. The talk between the boys often borders on the uncomfortable. One participant wants to pounce on her “like a gray squirrel!” Whatever that means. Another gushes that his attraction to older women dates back to early childhood. Isn’t that special?

Tonight’s other highlights

• A vision of the Virgin appears in a cardboard factory on “Bones” (7 p.m., Fox).

• Seven become six on “American Idol” (8 p.m., Fox).

• Miles and Hurley join forces on “Lost” (8 p.m., ABC).

• “Great Performances” (8 p.m., PBS, check local listings) presents the opera “Lucia di Lammermoor” by Donizetti.

• A crime wave may be all in the family on “The Unusuals” (9 p.m., ABC).