You will need a 1.2 M for 119 and a 2.4m for 110. (this is for DF, other locations may use smaller dishes)
And to those that nag about the signal being for the US. I hope someday you have to live somewhere aoutside the US for a couple of months and see how bad you miss your good ol USA channels. If I pay for it and have the means to get it even if it means having two huge ass dishes (1.2m and 1.8m), a voip router to hook up my receivers and my New York City address Ill have them!!!
Here in Cancun I'm using an old Direct 1.2 meter and receive America's 250 with no problem other than storm interference (very shallow angle). I don't have room for the giant I'd need for 110, but others have access to that sat as well.
And I'll add my comment to the nags about legality, etc. I pay via automatic payment. I am receiving a signal. I am not harming anyone and my little monthly payment contributes to providing revenue and jobs to American workers. The Mexican satellite monopoly, Sky Mexico, is virtually unwatchable, with lip sync, volume level and color distortion issues that appear to be unsolvable.
Things like running promotions for CBS News with Dan Rather for 20 months after he left the network is another example of the frustrations here, as is National Geographic being 30 frames out of sync for two months, despite repeated calls to their service center. Also, the SAPs never worked, and what little American programming existed was one year out of date. Plus, if you watched the American programming in Spanish, you realized that the English subtitles were wrong 50% of the time.
The cable provider, CableMas (or CableMenos as we say here) is equally bad. The laws regarding transmission footprints are in place to protect the monopoly content providers from "foreign" competition. I doubt that the small number of us in Mexico who receive Dish, Direct or the Canadian provider are any real threat to Sky.