Only in America, folks, could two men named Joey, linked only by their efforts on “Dancing with the Stars,” get to host two different shows debuting just two nights apart. Yes, we are living in a time of miracles.

Hot on the heels of Joey Lawrence and “Master of Dance” on TLC comes Joey Fatone and “Celebrity Circus” (8:30 p.m., NBC), a summer time-waster in which the boldfaced names hit the big top. Make that not-so-bold.

According to the network, the show will immerse “today’s top stars” in “the breathtaking world of circus and cirque.” That last word is French for circus, I guess.

And who are today’s top stars? There’s Antonio Sabato Jr., best known for “Melrose Place,” a show I don’t exactly associate with “today” – but I’m a cranky, left-handed critic and a Virgo with glasses to boot, so what do I know?

Surely, we must consider Rachel Hunter a star of “today.” After all, she, too, competed on “Dancing with the Stars” (in 2005). Other stars of “today” on this “Circus” include “Brady Bunch” favorite Christopher Knight, and we’re talking about the 1970s version, not the 1990s knockoff. Speaking of the 1990s, Stacey Dash (“Clueless,” 1995) is also here, as is Janet Evans, an Olympics swimming champion in 1988 and 1992. If you believe that makes her a star of “today,” try selling a 1992 Ford Tempo as a new car and see how far you get.

But perhaps I’m too finicky about that “today” word and haven’t been paying close enough attention to the part that describes them as “top stars.”

But don’t think Fatone’s “Dancing with the Stars” background will limit him to hosting cutting-edge talent on NBC. Next month, he’ll be seen on TLC (Joey Lawrence’s network) on something called “The Singing Office.”

¢ “Back Nine at Cherry Hills: The Legends of the 1960 U.S. Open” (9 p.m., HBO) profiles three golf greats – Ben Hogan, Arnold Palmer and Jack Nicklaus – and revisits the day they all participated in one of the most thrilling and heartbreaking afternoons in golf history. They met at a time when Hogan’s career was in eclipse, when Palmer had become the darling of both golf and TV advertisers and at the exact moment that a brash 20-year-old Nicklaus discovered just how good he could be.

Liev Schreiber narrates “Back Nine,” a fine sports history that will appeal even to folks who have never picked up a club.

Tonight’s other highlights

¢ National Geographic reels off a gullibility doubleheader, airing “Conspiracy Moon Landing” (7 p.m.) and “The Real Roswell” (8 p.m.).

¢ The merry band crashes the sheriff’s party on “Robin Hood” (7 p.m., BBC America).

¢ Franz Welser-Most conducts on “The Cleveland Orchestra in Performance: Bruckner Symphony No. 5.” (8 p.m., PBS, check local listings), recorded at the Abbey of St. Florian in Linz, Austria.

¢ A self-cleaning public restroom works with homicidal efficiency on “CSI: NY” (9 p.m., CBS).

¢ Annie prepares for the talent show on “Men in Trees” (9 p.m., ABC).

¢ A winner is crowned on “Top Chef” (9 p.m., Bravo).

Cult choice

Ron Perlman plays a hero with an underground reputation in the 2004 comic adaptation “Hellboy” (7 p.m., FX).