[BBKing]

It's not so much the engineer picking it up (even if you didn't schedule a visit specially), it's the testing and repackaging that would cost more money than it would cost to buy, essentially, a circuit board and a tuner. About as worthwhile as Gillette coming round to pick up and refurbish your old razor blades.

STBs are a different kettle of fish, there it is worthwhile tracking them through installation, removal, collection, refurbishment.