Re: I always feared the worst
" I fully expect that one day, my lifetime subscription will turn in to the lifetime of the device which means that once they end-of-life the product, the subscription will expire."
That could be difficult to do for existing boxen. Not impossible, but certainly difficult, at least in the US. I have papers on all my Tivos, going back to an ancient and not currently in use Series 2 box which plainly state that the Lifetime Subscription is for the life of that unique and serial numbered hardware device. When that discrete and physical box dies, the subscription dies with it. Not before. Altering that is almost certainly tantamount to altering a contract. Because I have actual paper and not some stupid and alterable web link, it's theoretically harder for anyone to alter it until that contract expires upon death of the device.
Now, that being said, they could certainly change that for any NEW purchases and I wouldn't be at all surprised to see them do it. This is why I plan to buy the latest model very soon before they enact any such shenanigans.