Channel Surfing by Laura Nachman Bucks County Courier Times March 23, 2004 Traffic Pulse reporter John Ogden of WCAU reports that he's received nothing but positive emails and calls since he announced he was gay two weeks ago.  "I was worried about coming out, but all the support has made what I've done rewarding," said Ogden, 22.  The LaSalle graduate, who has been at WCAU for almost a year since winning "The Greatest Summer Gig Ever" contest, said that he has heard from many gay teens and the parents of gay children. WCAU spokesperson Eva Blackwell said that the station has also received several positive remarks from viewers and said that Ogden is one of the station's most popular personalities. Sex And This City For fans of "Sex and the City" who are going through withdrawal since the show ended last month, the Gershman Y presents series writers Lisa Zuritsky and Julie Rottenberg as part of its "Hot Topics Lunch Series" on April 21 at noon.  For tickets, call 215-446-3027.  Zuritsky and Rottenberg grew up in the Philadelphia area (so that's why Miranda was from Philly!) WOGL 98.1-FM morning man Don Cannon will retire in the spring.  Cannon is one of the few morning show hosts in the country to work continuously in the same city for over 30 years.  He worked at WIBG, WIP, WFIL, WIFI, and WSNI.  WOGL has been his address since 1990.  Plans are in the works for a retirement celebration. Final Answer - Renewed "Who Wants to Be a Millionaire," which is up 28 percent in ratings has been renewed for a third season.  It airs on WPVI at 12:30.  Meredith Vieira hosts. Though all the talk has been about Sunday's implosion of Veteran's Stadium, WHYY looks at another old Philadelphia ball park in "Connie Mack Stadium - Long Gone" April 14 at 10:30 p.m. Cry Me a Rivers Joan Rivers, who has reinvented herself (again) with her hysterical awards show work on E! will be performing at the Keswick Theater in Glenside, PA Sunday.  Rivers is well aquainted with the Delaware Valley, as she's been traveling from her home in New York City to West Chester, PA for years to sell her wares on QVC. Former WBCB 1490-AM reporter Dipti Patel is the nighttime editor on KYW 1060-AM. Laura will be part of a panel discussing Howard Stern on "It's Your Call with Lynn Doyle" tonight at 9 p.m. on CN8.