CW and MyNetworkTV are NOT Sub Channels at least in this area they are not.
For example, in Detroit My TV is channel 20 and CW is channel 50.
Sub channels are the .1, .2 and .3 channels, you often find news on them or weather.
Jimbo
smaller markets they are. Larger markets they are not. Larger markets have enough full powered stations to go around for those nets (I'm the same way in Minneapolis)...His market (El Paso) has 5 full powered stations on the US side (some on the Mexican side).
According to wiki CW is on ABC subchannel and My Network is subchannel on CBS.
Kinda like my "moved" market (Duluth, MN)
5 full powered stations...CW on CBS sub and My on NBC sub