Media portrayals involving sexuality can contribute to the sexual socialization of young people. If television is an important source of information and potential influence about sex for young people, then obviously it is important to understand the nature and extent of sexual information that is being conveyed by television. This report contains findings from a study which represents an effort to overcome the limitations of previous content-based projects that have been relatively narrow in scope and modest in size, limiting the generalizability of the findings--this new study provides a complete and comprehensive examination of sexual messages found across the overall television environment. Following an introduction, the report is divided into these sections: Description of Methods; Presence of Sexual Messages; Types of Talk about Sex; Types of Sexual Behaviors; Messages Involving Sexual Risks or Responsibilities; Further Contextual Elements in Scenes with Sexual Intercourse; Comparing Patterns of Sexual Content across Program Genres; Sexual Messages Involving Teenagers; Sexual Messages in Prime-Time Network Programming; Sexual Messages in Children's Programming; and Summary and Conclusions. Contains 29 references. Appendix A contains a composite week sample, and Appendix B contains a broadcast network prime-time over-sample. Contains 29 references and 21 tables of data. A chart pack contains 6 data charts. (NKA)