Yes, it is available:
http://www.gire.org.mx/publica2/aeyru-486act04.pdf
http://www.proceso.com.mx/noticias_articulo.php?articulo=32849
Both links are in Spanish, but they can give you an idea...
Directv is not available in Mexico. Currently, it is offered only in the United States and Puerto Rico. You might be able to get Directv equipment and bring it to Mexico, and may even get a signal,...