[robinsonb5]

Yes it does. I was particularly struck by that some years ago durig the digital TV switchover. The elderly father of a friend of mine had been using a TV with a simple one-to-one mapping between the numbered buttons on the remote and the channel which would be shown on-screen. He could manage this despite not having much sensation in his fingers, and poor eyesight.

Now he suddenly had to contend with two remotes, and in order to use the set-top box he would have had to build a mental model of how the on-screen EPG worked, develop some sense of current "location" within the menu, and get to grips with selecting an option - all stuff the rest of us take for granted without a second thought. But because of his failing eyesight, his failing sense of touch in his fingers, and an inability (and yes, a non-trivial amount of unwillingness!) to learn new interface concepts, it was basically the end of his unassisted access to TV.

[mato]

This, 200%. I have the same problem with my 87yo father, and no idea how to fix it. I've drawn up step by step instructions, labelled both the TV and set top box remotes and devices with icons, yet somehow he manages to press something on either that throws the whole system out of whack and results in a phone call about "the TV not working". Usually unsolvable without being there in person, which with Dad living 250km away is not doable on a daily basis.

[robinsonb5]

We bought a kid's universal remote from Argos, with big colourful buttons, then I put together an Arduino-based gizmo which received button presses from the new remote, and played macros of button presses to the TV and set top box. It worked up to a point, but of course it's defeated by any buttons whose meanings are affected by state - the button which toggled between the TV's internal tuner and the AV input was a particular problem.