If its shut off for non payment, there are some "unlocked key" channels like preview chanels, RFD TV, Nasa, and religious stuff that do show up free.
I did a DirecTV dish install for someone about a week ago and we used an old unscubscribed DirecTV box to aim the dish and there were a few channels on there (mainly religious)
On a Dish Network box that was subscribed, you get preview channels,
CCTV9, Nasa, Angel One,
Sirius preview. Use to get more like those knockoff shopping channels and all the PI channels from 61.5/148 but Dish nuked those.