A great example of planned obsolescence as you call it would be the "support" updates your phone recieved over two years, with each update introducing new glitches and bugs to the point where something fundamental breaks and you now NEED to buy an upgrade. It's that very reason that my iPhone 6s is still on the firmware it launched with, and boy was I rewarded with all the connection problems popping up for those who made the move to iOS10 a few days ago.
Beyond that, the only tech I've ever had to replace because of breaking is our microwave and our washer/dryer once. Never had a tv break (our tube tv from the late 90s does fine) and the only time a console has broken on me is from modding.







