Advertisements I recently bought a Samsung SIR S4080R DTV Tivo used for $10. Is there a way to test this thing before I activate it? I don't want to activate unless I know it works. I currently have an RCA DTV Tivo active in the house. It has an 80 gig HDD in it. How many hours is that good for? Can I hack it to work on both receivers using a card from a regular RCA receiver? I've heard both pro and con about this receiver. But, for ten bucks. Questions, questions.