I am looking to start a project and sadly I do not even know where to begin.
The goal is to capture terrestrial TV signals (in the US I believe this is ATSC) via an antenna, selectively tune to a specific channel, demodulate, decompress and synchronize audio and video. Then take that A/V signal and hardware encode to WebM and/or H.264. Ultimately, take that video and provide it as a data stream that can be sent over HTTP. I want to eventually make it a nice little self-contained package that I can just plug an antenna into on one end and an ethernet port into the other. Navigate to the website on the device and see video.
The good news is that I have already prototyped the entire process in software: Fedora 19, HVR-2250, FFmpeg, FFServer, Apache2. I concede that the HVR-2250 is hardware, but from the level I am using it, its essentially software to me; I digress.
I have been looking for packages and reference designs for demodulation and decompressions of ATSC signals but cannot seem to find the right keywords to search. Alternatively, it could be that I am getting valid results and am to dense to understand how the results apply to what I am trying to achieve.
Ultimately, I am not looking for someone to design the whole thing for me. I am just looking to figure out where to start (e.g., reference designs, part numbers, etc...). After all, I have a degree in EE so I am familar with Ohm's law and such. 
