I've been thinking of getting a projector for awhile now, and this looks sweet, especially for 1099 with shipping and a free 37.5x67 inch screen. Anyway, two questions. First, I'm assuming that the 67 inches is the diagonal widescreen image, correct? Second, a rather (I'm sure) dumb question--how would I watch tv on this thing? I'm assuming I'd need an hd box because it has no coaxial inputs, so how could I do this? Thanks!