Aged P Getting Fed-Up Stuck Indoors - Any Ideas To Keep His Brain Engaged?

[Barquentine]

F.I.L. can just about walk to the lounge, the kitchen and out via the extension to the downstairs showerroom. He's got an adjustable bed in our dining-room (table and chairs pushed into one corner and a dividing curtain put up) - since stairs are now too much for him.
He comes in and sits on sofa to watch TV - but his hearing is malfunctioning (can you get hearing aids without the need to be measured for them?) so it rarely holds his attention for long. He doesn't want to listen to the radio I gave him, feels too tired to read books, no question of going out in the car somewhere (esp. not with the recent weather) & an occasional excursion half way up the back garden represents a really good day!
He likes playing dominoes (which we do - a lot). He also likes Sudoku, but whereas he used to do the super fiendish ones, now he finds the easy ones a struggle. He's on a lot of medication which we assume and reassure him is why his brain's a bit fuzzy. Any brilliant ideas to raise his spirits would be very welcome. Being stuck in the same few rooms indoors must be so boring for him. He's lost touch with friends he used to know, since he started spending half the year back home in Mauritius over the last 10 or 15 years. One or two neighbours have been round to chat, but often he's not in the mood to talk - maybe due to hearing going(?) or constant tiredness. I found some Youtube videos of old Mauritius which I played on the TV which caught his attention for an hour or so, but there's only so many you can watch. Really tricky one I know and a big ask, but maybe someone who's (been) in the same situation might have some inspirational ideas. Many thanks.

[Georgiesmum]

What about word search books? All the supermarkets sell them and they help to pass the time.

[TheDevil]

A mobility scooter sounds like a good idea even just to allow him the freedom to pop to the shops for himself.