If I understand the splicer correctly, there is no re-encoding done during primetime (or during NFL games) when the splicer takes over. I'm thinking FOX as a network kind of sets the allocation of bandwidth for it's 'channel', and what remains is what is given to the subchannel (the WB), in a perfect world anyway.
Now, as the two signals go through the statmuxer, I'm sure WZDX has control of what gets what, which will determine the resulting PQ of each channel.
The question now is, does FOX, on a network level, impose a minimum bitrate to each affiliate?
Currently testing 3D with Sammy DLP, shutter glasses, and HTPC