Standard definition with DirecTV is cheap and easy. You need a dish (ebay will work) and a receiver (ebay also works for this). Make sure the receiver you get is OWNED. It should say that in the listing. With some practice (and a cellphone app and cheap signal finder) the dish is easy to set up.
HD is a bit more expen$ive. The dish and hardware is more expensive as is the receiver. I've never aimed one so I can't say whether it's any easier or not. It would be nice to take our DTV DVR with us so I may look into an ebay HD dish next season.