I bought a sling box M1 in California and know live in Mexico city, so try to configure my sling box but can not find Mexico in Country box nor device type... is there any way to change this and use M1 with Cablevision provider?
The country question is ONLY for the built-in guide so you can ignore it. Just tell it you are in the USA, put in a ZIP code (90210?) and that your TV provider is not listed. Then you should be good to go.