Coby DTV-140 ATSC High Definition Set Top Box Receives Free Over-the Air (OTA) Digital Television Signals Compatible with all 18 ATSC Signal Formats Outputs OTA HDTV signals for use with High Definition TV's (720p/1080i) Downconverts OTA HDTV signals for use with Standard and Enhanced Definition TV's (480i/480p) On screen program guide