HDTV televisions are built with a tuner/decoder that is capable of receiving the full 19.4mbs.
The TVs can tune to any video feed(s) that are sent by the station that are in one of the 18 HDTV formats. Any data not in this format is discarded
HOWEVER, Hauppauge and Broadlogic are now producing PC cards that can be placed in a PC that can receive the 18 HDTV formats and play them on the PC’s monitor (it is already hi def), or on an external HDTV compatible TV
PCs equipped with these cards will also be capable of receiving any IP data sent as part of the 19.4mbs. It acts as an ethernet card receiving data through an NDIS driver and sending it to its software.
This enables it to work in tandem with a return path back to an ISP much in the same way that DirecPC works if the application requires 2 way communication.
The cost for these cards are about $299 this year and should drop to become standard equipment in 24-36 months