My FIL sits and watches TV all day every day. He's not shy about criticising gifts and there's nothing I can think of that would enthuse him. I considered a Netflix gift card, then remembered he doesn't have a smart TV.
He's not in the best of health and won't exercise. Sugary / fatty food is a no-no for health reasons.
Any ideas gratefully appreciated. Ideally it would be something he could do while sitting.