If you hook up a DISH HD reciever like the 942 to a standard television and use it for OTA HD broadcasts, can you hook it up using the S-video or composite output to view it downconverted to SD? The reason I ask is because a-I get snowy analog reception but clear HD reception OTA in my area and B-there are a couple digital subchannels I'd like to be able to get on my secondary television.