A primetime show on the CW network is being targeted for what critics say is another sexually charged ad campaign. Gossip Girl is the most watched show among 12- to 17-year-old girls. And according to the Parents Television Council (PTC), the show features teenage girls having sex with adults, as well as alcohol and drug abuse. Now, PTC's Melissa Henson is sounding a warning for a new series of ad campaigns for the show.