Tivo has Lifetime subscriptions, where the lifetime is of the hardware but they transfer if you sell the hardware. They aren't always selling them as an option, but they always honor them, and have been for 10+ years.
I bought an original Tivo with lifetime service in 1999 and I still use the subscription today. 6 or 7 years ago they offered a promotion that allowed you to transfer your lifetime service to a new HD unit and that device is still running. The service has cost me an average of $1.28/mo.
