Your odds of success are probsably less than 10%. There is signal loss through the glass/ in ability to aim accurately/ and the obstruction the dish and mount become on the floor.
Settle for cable or move to a more satellite friendly location.
Went on a service call once. Customer installed his dish him self but he could not get signal. The dish was mounted in the center of the living room floor. (I have pictures) right through the hard wood floors It did work and after it was pointed correctly it had good signal.
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