The AP reports on a Gay & Lesbian Alliance Against Defamation (GLAAD) study that found that HBO features more gay, bisexual, and transgender characters on its series than any other network. The survey looked at original primetime series on ten cable and the five major networks, more than 6000 hours of original programming.
Here's a link to the news release from GLAAD. Here's a link to the full report, formally called the Network Responsibility Index.