I have a question about Time Warner Cables HDTV offerings in columbus, OH. I have a Toshiba TW40H80 HDTV READY set, but not a set top decoder for receiving HDTV signals. I see that HDTV through time warner requires a special set top box. Is this the only box i would need in order to receive HDTV through Time Warner, or would i need their box, in addition to a set top HDTV decoder box. Thanks a lot if anyone can clear this up for me.