Hi Mfabien !
I've got some bitrate for you. Be careful, the video and audio bitrate are separated. By the way, for all those channels, its exactly the same bitrate as we received it OTA. If a channel bitrate is not higher than this, it's because the OTA station isn't broadcasting higher than this and, most of the time, it's because they waste bandwidth (and quality) for the useless subchannel.
For FOXHD, this is the only station that the non-hd bitrate is completely different than the HD bitrate because their network feed is already pre-compressed at a lower bitrate.
Video : 14.4 Mbps in 1280x720P - Nice quality, better than Buffalo's
Audio : 384 Kbps in DD5.1 - Yes the sound is finally in DD5.1 but there is a lot of break in the stream. I hope they will fix that soon...
Video : 16.2 Mbps in 1920x1080i - The picture is a lot better than the one from Buffalo (14.2 Mbps).
Audio : 384 Kbps in DD5.1 - Another problem here, the sound is, specially with the local feed, not always synchronize with the picture.
Video : 14,8 Mbps in 1920x1080i - For CBSHD, now, there is a drop in video bitrate because the Buffalo station was using 16.4 Mbps lately. The picture is a bit more pixelated but, overall, it's not bad.
Audio : 384 Kbps in DD5.1 - Nice sound quality, switching from DD2.0 to DD5.1 when needed.
Video : 13.8 Mbps in 1920x1080i - The Mount Mansfield station would have a been a little better with a video bitrate around 15.2 Mbps but it's still better than the Buffalo's OTA.
Audio : 384 Kbps in DD5.1
only broadcast (I didn't catch a HD show yet...)
Video : 14.6 Mbps in 1280x720P. Good for a 1280x720P station.
Audio : 384 Kbps in DD2.0 (quite normal for local).
So, for now, I think those stations are a bit too "young" to be considered "stable". Since the unappropriated HD substitution forced by Rogers, Videotron has no choice to switch their HD source earlier than expected.