‘View’ership

Debbie Matenopoulos will return to “The View” as a guest-host July 25 – her first time back since her 1999 departure. Matenopoulos was the first “View”er to leave the show, two years after its premiere; only Joy Behar and Barbara Walters remain from Debbie’s heyday.

Robin Givens (July 26) and Mo’Nique (Aug. 18) have also been added as summer guest-hosts. A show spokesman, meanwhile, labels a published report that Bo Griffin has already been inked to replace Star Jones as “unsubstantiated rumors.”

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Former “Wonder Years” star Danica McKellar, a noted mathematician (she co-authored a mathematical theorem at UCLA), will channel her mathwhiz abilities to an age-specific audience with “Math Doesn’t Suck,” a new book coming out next year and targeted toward middleschool girls and their parents.

She also has an upcoming Lifetime multimedia series, “Inspector Mom.”

Last, but not least:

* Tonight: Ch. 47’s Luis Alejandro Medina hosts the Colombian Civic Center’s annual gala.

* Mets ratings on SNY have increased 80 percent over last year (MSG Networks).

* Ever wonder what it’s like to have the “This Old House” crew renovate your home? Check out “Old House, My House,” a new blog on thisoldhouse.com.

* Next week on “Today”: Maria Menounos fills in during the 9 a.m. hour while Natalie Morales co-anchors with Matt Lauer.

* Fine Living TV launches a nationwide search tomorrow to find Chad Maulsby’s replacement as host of “The Wandering Golfer.” Go to fineliving.com/golf for details.

* Congrats to Karen Watson, Nielsen’s new senior VP, communications.

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* Bravo has renewed “The Real Housewives of Orange County” for a second season, the network announced yesterday. The so-called “docu-soap” series returns later this year, picking up where it left off last season, when it averaged 650,000 viewers.