Gotcha. Yeah...we have two lines coming into the apartment: one for Roadrunner, the other for cable TV. We have the Explorer HD 8300 cable box in the living room for my roommate's TV.
We also have a split coming off that line and right into my room. I have no box, so it's just the raw basic cable coming straight into my TV.
EDIT: Yeah, it looks like that's the exact situation I'm in. It's not a huge deal by any means...I was only able to pick up a single HD channel and it was whatever used to be the WB.