All of the above
I have Dish network as a full time service, but sence I have cable internet I hooked up basic cable straight to the TV, plus an off air antenna hooked throught the dish box for local HD channels.
I live in the midwest and with all the ice storms, I never know if one is working or not, so I figured if I have three types of service one is bound to work. lol
I did also have a cable box a couple of months ago, I just switched to dish so I did see it through a cable box too, but I dont see any diffrents from the box and going straight to the TV.