>> i sometimes get me tv on a skip from nw orleans on my ant.i wonder why it plays sound when iget it like that. << Because that's OTA ATSC, your television is ATSC capable. OTA and satellite signals are not the same. Related, yes, but not interchangable.
>> any insight as to why more ch dont scan? << Many services are mpeg4 (H-264) and/or DVB-S2. Think the coolsat is only capable of mpeg2 and DVB-S.
>> geosat pick up everything? << the GeosatPro microHD is capable of all except 4.2.2 video. (which is very uncommon)
>> sv premiere but i see its got a spdif on the back.do you think it will work any better? << Don't know the specifications so can't say. DVB-S2?? H-264?? on-board AAC decoding??
--spdif outputs must be connected to an spdif input on an audio amplifier or other decoder. Connecting to an audio input will not work. --