Channel Surfing by Laura Nachman Bucks County Courier Times June 15, 2004 LaSalle University's Ralph Garman returns as host for the second season of last summer's fun show "Joe Schmo" on Spike TV tonight at 10 p.m.  To insure that nobody recognizes Garman from last year, he is disguised in a blond wig and mustache.  "Joe Schmo" was a spoof of reality shows, where only one contestant thought he was participating in a reality show.  The rest of his cast mates were actually actors.  This time a man and a woman will be "Schmoed," in a romance-reality show spoof called "Last Chance for Love."  Garman, a Northeast Philadelphia native works full time as a Los Angeles radio personality. Sex in the Summer The syndicated version of "Sex and the City" premieres on TBS Thursday.  Yippee!  James Remar, who played the Donald Trump-type boyfriend of Samantha's, is one of the stars of the new Fox show "North Shore."  Larry Mendte is competing against former co-anchor Renee Chenault-Fattah on station voice mails.  When you call WCAU's main number, Chenault-Fattah is the voice of the station.  Now, Mendte is the voice at KYW. For those disappointed that the Fleetwood Mac concert at the Tweeter Center was canceled last week due to an illness in the band, PBS will air a "Soundstage Fleetwood Mac" concert Sunday at 10:30 p.m.  There's a new original series on CN8.  "Backstage with Barry Nolan" will air every Friday at 8 p.m.  Nolan, who works for CN8's Boston bureau, is best known for his work on "Hard Copy." WCAU's Amy Freeze did the weather for the "Weekend Today Show" June 5. Laura discusses entertainment on WBCB 1490-AM Tuesdays and Thursdays at 8:45 a.m.