You can’t get Unifitv without Unifi so you’re stuck there

There’s a new Unifi package for rm169 and you get 300mbps, Netflix and a 30gb mobile line. That’s pretty good. You just need to figure out one more plan. Perhaps if your grandfather don’t use much, he can change to prepaid too.

Alternatively you can stick to your current Unifi plan and both of you change to hotlink postpaid. Rm50-60/month can get a free phone with contract. There’s a RM30 postpaid plan that’s quite decent for your grandfather too.