Okay, just to be sure though: What do you mean by digital? Are you saying your televisions are ATSC/QAM compatible?
One of the confusing bits about this is that the same words have been REUSED. When I first started talking to my mother about "digital" television, she thought that she was all set because her channels show up as digital numbers, instead of having a dial like on really old televisions!

She was really disappointed when I told her that "digital" now meant the kind of tuner you had, not how you changed channels.