http://www.circuitcity.com/detail.js...&oid=80976&m=0 I picked this TV up for a really great price. I don't have digital cable cause I really only want to watch movies. But, say a show like ER is on. It says presented in High Definision. Does my built in digital tuner pick that up over a regular cable conection? Or do you actually have to have digi cable to get that?