I did lose some HD channels, I was watching the game on 320 (NBC Detroit) and just when the game was over I lost the channel, same thing with 321 ABC Detroit,
totally lost them for a while, since CTV cut short the post-game I had to switch to 75 NBC East on SD.
I did not recover signal on 320 until after The Blacklist, apparently it´s back to normal, but it was something really weird, clear skies on my location, so I couldn´t say it was anything on my end.