well some of the other CW may do some of things that WGN does. also in some areas the CW is just a digital sub-channel or not on OTA. so if there was games on CW wgn may just put them on 9.2 or maybe temp then to 9.3 if there was a cubs, sox , bulls or blackhawks game. They maybe be able to move a cubs, bulls, sox game to WCIU There is more then just moving that with wgn America also mirroring just about all MLB games and some of bulls games. Also there is the MLB / NBA / NHL schedules lead time.