I guess I'm a wee bit late to the party on this one.....I have an HR-20 that's about 6 years old. It's slowing down a bit but it still runs. Over the last few months I've received several emails from DTV telling me I am entitled to a free upgrade. If I go online they want to send me an HR-24. Are they doing this out of the goodness of their heart or trying to get rid of the old boxes.........or???? Any reasons why I should or should not do this?