Schoolyard pastime moves up to prime time

The August silly season is upon us. The CW debuts “Oh Sit!” (7 p.m., WLMTTV Channel 30), a new series based on the game musical chairs, a pastime most of us outgrow around fourth grade.

Jamie Kennedy (“The Ghost Whisperer”) and Jessi Cruickshank (“MTV Live”) co-host. “Sit” invites a dozen adventure-seekers to play the old grade-school game at a furious pace, accompanied by live music.

What other schoolyard antics can we expect if this succeeds? Celebrity double dutch? Hopscotch with the stars? Competitive duckduck-goose between the Kardashians and the stars of “Jersey Shore”? Perhaps Ralph Lauren could sponsor a reality version of Marco Polo!

Speaking of arrested development, the Travel Channel debuts the new series “Toy Hunter” (9 p.m.).

“Hunter” host Jordan Hembrough is a cheerful guy. Make that a cheerful Jersey guy. And this being cable, which is imitative of other successful shows, “Hunter” begins on, or technically, near the Jersey Shore.

“Hunter” shows Hem- Judges Nigel Lythgoe, Mary Murphy and Christina Applegate judge the finalists’ routines on Wednesday night’s installment of “So You Think You Can Dance.” brough driving up and down the Garden State Parkway in search of childhood keepsakes he can buy and quickly flip. He and most of the collectors he meets are quasi- experts on their artifacts, which are mostly dolls and models licensed from popular entertainment franchises. A remarkable number of them were churned out in plastic factories in New Jersey during the 1950s and ‘60s, the Golden Age of Creative Extrusion.

Speaking of stuff, “Storage Wars: Texas” (8 p.m., A&E) enters its second season.

OTHER HIGHLIGHTS

Host Bonnie Kourve- las sits down with Joe Moscheo, providing an indepth, inside perspective on the life of Elvis Presley on “A Conversation With Joe Moscheo” (6:30 p.m., WKNO-TV Channel 10).

Finalists perform on “So You Think You Can Dance” (7 p.m., WHBQTV Channel 13).

Undercover in the Hamptons on “Royal Pains” (8 p.m., USA).

Dani treats a professional gamer on “Necessary Roughness” (9 p.m., USA).

Women explain how they promised to have and hold their made man for better or for worse on “I Married a Mobster” (9 p.m., Investigation Discovery).