Does it have to be their actual local stations, and what are they looking to watch on their local stations? I'm asking because the only truly local thing I think I watch is the local news, and at least where I am, I can stream from the local station's website.
That leaves daytime programming, and syndicated and network evening/night broadcasts, and you could get around a lot of that with something like Stanford's Puffer (if they live on the west coast, or are night owls).