Device That Plays Hard Drive On Tv Is There A Device That Connects Directly To The TV For Storgage And Playback Of HD Cancorder Video?

Is there a device that connects directly to the TV for storgage and playback of HD cancorder video? - device that plays hard drive on tv

I am looking at the shops Panasonic HD video camera just for SD cards. As of today, have several SD cards can be very expensive, I am looking for a way to dump the video from the card to hard drive capacity and read them directly to my HDTV.