If they have to have a lot of channels then $120 isn’t the worst price (I have relatives who pay twice as much as that a month for cable) though you could perhaps try and check into whether they could switch to a streaming linear TV service like DirecTV Stream with one of their lower tier packages to save some money while retaining a cable-like experience (there’s also Sling, Hulu+Live TV, YoutubeTV, FUBO, etc, many of which have packages with many of the top channels for $60-$80/month).

Fact is to save money you need to be willing to give things up. If you’re moving from a premium cable package with a ton of channels to a few streaming services you’re going to lose things and potentially a lot of things. You’re going to lose access to live news channels, you’re going to lose access to specific programs on some networks that don’t have streaming service equivalents (I know for one older person I knew the fact they couldn’t get and watch Lifetime and Hallmark movies within any reasonable time-frame of their premier meant they were not interested in looking into streaming any further to replace their cable).

More than that though most old people hate change, they were used to a certain way of things and they’re afraid and perhaps get confused or frustrated with this new way of doing things. It’s simply more comfortable for them to use the old satellite system they’re used to and its interface and way of changing channels than doing something new where they have to think of how to do something or get frustrated or ask for help. Which is why I do think trying a streaming cable replacement like those I mentioned might be your best bet. It would still save some money.