They might? Check in the fine print as to what models they support? The question would be how the antenna would connect to the TV...newer models have HDMI and USB connections but depending on how old his set is he might have VGI connections (I think that's what they're called, they're red, yellow, and white). He may be using those for his dvd player.
FWIW, I think it's great that you're giving him this chance.
(As an aside, I wish I didn't know who was running for president...I'd sleep better at night!)
One last thought...maybe a newspaper subscription, the old fashioned actual paper kind? In rural communities, they're often alive and well.
Yet another thought...Goodwill often has used electronics for cheap.