there are no digital descramblers.
but regular cable descramblers do work. $220-$310 for a nice universal unit.
as for satellite, directv, if you bought one late '98, june i believe, you got the new "hu" cards, which can not be hack, yet. it was released in europe 3yrs before it hit the us.
if you got a card with a picture of a football player youre out of luck.
if you bought directv before june98, you got the old "h" card, now that is gold baby, it can be hack, free satellite for life. and that includes all porn all day.
the "h" card has no picture, just says "dss access card" on the front.